| 1. |
- Locke, Adam E, et al.
(författare)
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Genetic studies of body mass index yield new insights for obesity biology.
- 2015
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 518:7538, s. 197-401
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Tidskriftsartikel (refereegranskat)abstract
- Obesity is heritable and predisposes to many diseases. To understand the genetic basis of obesity better, here we conduct a genome-wide association study and Metabochip meta-analysis of body mass index (BMI), a measure commonly used to define obesity and assess adiposity, in up to 339,224 individuals. This analysis identifies 97 BMI-associated loci (P < 5 × 10(-8)), 56 of which are novel. Five loci demonstrate clear evidence of several independent association signals, and many loci have significant effects on other metabolic phenotypes. The 97 loci account for ∼2.7% of BMI variation, and genome-wide estimates suggest that common variation accounts for >20% of BMI variation. Pathway analyses provide strong support for a role of the central nervous system in obesity susceptibility and implicate new genes and pathways, including those related to synaptic function, glutamate signalling, insulin secretion/action, energy metabolism, lipid biology and adipogenesis.
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| 2. |
- Shungin, Dmitry, et al.
(författare)
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New genetic loci link adipose and insulin biology to body fat distribution.
- 2015
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 518:7538, s. 187-378
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Tidskriftsartikel (refereegranskat)abstract
- Body fat distribution is a heritable trait and a well-established predictor of adverse metabolic outcomes, independent of overall adiposity. To increase our understanding of the genetic basis of body fat distribution and its molecular links to cardiometabolic traits, here we conduct genome-wide association meta-analyses of traits related to waist and hip circumferences in up to 224,459 individuals. We identify 49 loci (33 new) associated with waist-to-hip ratio adjusted for body mass index (BMI), and an additional 19 loci newly associated with related waist and hip circumference measures (P < 5 × 10(-8)). In total, 20 of the 49 waist-to-hip ratio adjusted for BMI loci show significant sexual dimorphism, 19 of which display a stronger effect in women. The identified loci were enriched for genes expressed in adipose tissue and for putative regulatory elements in adipocytes. Pathway analyses implicated adipogenesis, angiogenesis, transcriptional regulation and insulin resistance as processes affecting fat distribution, providing insight into potential pathophysiological mechanisms.
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| 3. |
- Speliotes, Elizabeth K., et al.
(författare)
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Association analyses of 249,796 individuals reveal 18 new loci associated with body mass index
- 2010
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 42:11, s. 937-948
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Tidskriftsartikel (refereegranskat)abstract
- Obesity is globally prevalent and highly heritable, but its underlying genetic factors remain largely elusive. To identify genetic loci for obesity susceptibility, we examined associations between body mass index and ~2.8 million SNPs in up to 123,865 individuals with targeted follow up of 42 SNPs in up to 125,931 additional individuals. We confirmed 14 known obesity susceptibility loci and identified 18 new loci associated with body mass index (P < 5 × 10−8), one of which includes a copy number variant near GPRC5B. Some loci (at MC4R, POMC, SH2B1 and BDNF) map near key hypothalamic regulators of energy balance, and one of these loci is near GIPR, an incretin receptor. Furthermore, genes in other newly associated loci may provide new insights into human body weight regulation.
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| 4. |
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| 5. |
- Bergman, Stefan, 1959-, et al.
(författare)
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Chronic Widespread Pain in Adolescents Is Highly Associated to Stress and Anxiety
- 2015
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Ingår i: Arthritis & Rheumatology. - Hoboken, NJ : John Wiley & Sons. - 2326-5191 .- 2326-5205. ; 67:Suppl. S10
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Tidskriftsartikel (refereegranskat)abstract
- Background/Purpose: Chronic widespread pain (CWP), one of the hallmarks of fibromyalgia, is not uncommon in adolescents and it has previously been shown that adolescents with pain often become young adults with pain. CWP often co-varies with anxiety, depression, and stress symptoms in adults, but the knowledge regarding this is small in youth and young adults.The aim was to study the associations between CWP, anxiety, depression and stress in adolescents attending first year of high school.Methods: A computerized questionnaire to 296 adolescents attending Swedish high school, with validated questions regarding presence and distribution of pain (Epipain mannequin), stress symptoms (ELO question), anxiety and depression (Hospital Anxiety and Depression Scale – HADS), and health related quality of life (HRQL as measured by EQ5D). Pain was considered chronic when persistent for more than three months, and the subgroup CWP was defined according to the 1990 ACR criteria for fibromyalgia. Statistical analyses in SPSS v21 with comparison of means by Student’s t-test and proportions by chi2-test or Fischer’s exact test.Results: 257 (87%) out of 296 eligible students, mean (SD) age 16.1 (0.7) and 65.8% girls, responded to the questionnaire. Prevalence of chronic pain was 20.8% and that of the subgroup CWP was 4.7%, without any gender differences (boys 18.2% vs girls 22.2%; p=0.224, and 3.4% vs 5.4%; p=0.692). High level (4 or 5 on a 5 point scale) of stress symptoms were less common in boys (16.0% vs 28.2%; p=0.015), as was possible or probable anxiety (17.1% vs 44.4%; p<0.001), but not depression (10.3% vs 12.5%; p=0.764). Students with high level of stress reported CWP five times more often than those with less stress (30.4% vs 5.8%; p=0.001). Students with probable anxiety reported CWP ten times more often than students with no anxiety (17.6% vs 1.8%; p=0.001), and CWP was also more common, but not statistically significant, in students with probable depression (20.0% vs 3.1%; p=0.163). Those reporting CWP had significantly lower HRQL (0.58 vs 0.87; p=0.038) than students with no chronic pain.Conclusion: The high prevalence of chronic pain and the strong associations between CWP and reports of stress and anxiety in adolescents highlights that a multifactorial background to chronic pain must be considered early in life. An apparent lower score in EQ5D also indicates that the presence of CWP has an marked impact on HRQL also in adolescents.
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| 6. |
- Dima, Danai, et al.
(författare)
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Subcortical volumes across the lifespan : Data from 18,605 healthy individuals aged 3-90 years.
- 2022
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Ingår i: Human Brain Mapping. - : Wiley. - 1065-9471 .- 1097-0193. ; 43:1, s. 452-469
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Tidskriftsartikel (refereegranskat)abstract
- Age has a major effect on brain volume. However, the normative studies available are constrained by small sample sizes, restricted age coverage and significant methodological variability. These limitations introduce inconsistencies and may obscure or distort the lifespan trajectories of brain morphometry. In response, we capitalized on the resources of the Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) Consortium to examine age-related trajectories inferred from cross-sectional measures of the ventricles, the basal ganglia (caudate, putamen, pallidum, and nucleus accumbens), the thalamus, hippocampus and amygdala using magnetic resonance imaging data obtained from 18,605 individuals aged 3-90 years. All subcortical structure volumes were at their maximum value early in life. The volume of the basal ganglia showed a monotonic negative association with age thereafter; there was no significant association between age and the volumes of the thalamus, amygdala and the hippocampus (with some degree of decline in thalamus) until the sixth decade of life after which they also showed a steep negative association with age. The lateral ventricles showed continuous enlargement throughout the lifespan. Age was positively associated with inter-individual variability in the hippocampus and amygdala and the lateral ventricles. These results were robust to potential confounders and could be used to examine the functional significance of deviations from typical age-related morphometric patterns.
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| 7. |
- Frangou, Sophia, et al.
(författare)
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Cortical thickness across the lifespan : Data from 17,075 healthy individuals aged 3-90 years
- 2022
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Ingår i: Human Brain Mapping. - : John Wiley & Sons. - 1065-9471 .- 1097-0193. ; 43:1, s. 431-451
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Tidskriftsartikel (refereegranskat)abstract
- Delineating the association of age and cortical thickness in healthy individuals is critical given the association of cortical thickness with cognition and behavior. Previous research has shown that robust estimates of the association between age and brain morphometry require large-scale studies. In response, we used cross-sectional data from 17,075 individuals aged 3-90 years from the Enhancing Neuroimaging Genetics through Meta-Analysis (ENIGMA) Consortium to infer age-related changes in cortical thickness. We used fractional polynomial (FP) regression to quantify the association between age and cortical thickness, and we computed normalized growth centiles using the parametric Lambda, Mu, and Sigma method. Interindividual variability was estimated using meta-analysis and one-way analysis of variance. For most regions, their highest cortical thickness value was observed in childhood. Age and cortical thickness showed a negative association; the slope was steeper up to the third decade of life and more gradual thereafter; notable exceptions to this general pattern were entorhinal, temporopolar, and anterior cingulate cortices. Interindividual variability was largest in temporal and frontal regions across the lifespan. Age and its FP combinations explained up to 59% variance in cortical thickness. These results may form the basis of further investigation on normative deviation in cortical thickness and its significance for behavioral and cognitive outcomes.
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| 8. |
- Gutman, Boris A, et al.
(författare)
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A meta-analysis of deep brain structural shape and asymmetry abnormalities in 2,833 individuals with schizophrenia compared with 3,929 healthy volunteers via the ENIGMA Consortium
- 2022
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Ingår i: Human Brain Mapping. - : John Wiley & Sons. - 1065-9471 .- 1097-0193. ; 43:1, s. 352-372
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Tidskriftsartikel (refereegranskat)abstract
- Schizophrenia is associated with widespread alterations in subcortical brain structure. While analytic methods have enabled more detailed morphometric characterization, findings are often equivocal. In this meta-analysis, we employed the harmonized ENIGMA shape analysis protocols to collaboratively investigate subcortical brain structure shape differences between individuals with schizophrenia and healthy control participants. The study analyzed data from 2,833 individuals with schizophrenia and 3,929 healthy control participants contributed by 21 worldwide research groups participating in the ENIGMA Schizophrenia Working Group. Harmonized shape analysis protocols were applied to each site's data independently for bilateral hippocampus, amygdala, caudate, accumbens, putamen, pallidum, and thalamus obtained from T1-weighted structural MRI scans. Mass univariate meta-analyses revealed more-concave-than-convex shape differences in the hippocampus, amygdala, accumbens, and thalamus in individuals with schizophrenia compared with control participants, more-convex-than-concave shape differences in the putamen and pallidum, and both concave and convex shape differences in the caudate. Patterns of exaggerated asymmetry were observed across the hippocampus, amygdala, and thalamus in individuals with schizophrenia compared to control participants, while diminished asymmetry encompassed ventral striatum and ventral and dorsal thalamus. Our analyses also revealed that higher chlorpromazine dose equivalents and increased positive symptom levels were associated with patterns of contiguous convex shape differences across multiple subcortical structures. Findings from our shape meta-analysis suggest that common neurobiological mechanisms may contribute to gray matter reduction across multiple subcortical regions, thus enhancing our understanding of the nature of network disorganization in schizophrenia.
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| 9. |
- Heid, Iris M, et al.
(författare)
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Meta-analysis identifies 13 new loci associated with waist-hip ratio and reveals sexual dimorphism in the genetic basis of fat distribution
- 2010
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 42:11, s. 949-960
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Tidskriftsartikel (refereegranskat)abstract
- Waist-hip ratio (WHR) is a measure of body fat distribution and a predictor of metabolic consequences independent of overall adiposity. WHR is heritable, but few genetic variants influencing this trait have been identified. We conducted a meta-analysis of 32 genome-wide association studies for WHR adjusted for body mass index (comprising up to 77,167 participants), following up 16 loci in an additional 29 studies (comprising up to 113,636 subjects). We identified 13 new loci in or near RSPO3, VEGFA, TBX15-WARS2, NFE2L3, GRB14, DNM3-PIGC, ITPR2-SSPN, LY86, HOXC13, ADAMTS9, ZNRF3-KREMEN1, NISCH-STAB1 and CPEB4 (P = 1.9 × 10⁻⁹ to P = 1.8 × 10⁻⁴⁰) and the known signal at LYPLAL1. Seven of these loci exhibited marked sexual dimorphism, all with a stronger effect on WHR in women than men (P for sex difference = 1.9 × 10⁻³ to P = 1.2 × 10⁻¹³). These findings provide evidence for multiple loci that modulate body fat distribution independent of overall adiposity and reveal strong gene-by-sex interactions.
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| 10. |
- Kumpulainen, Risto A., et al.
(författare)
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Sweden to review its geological nomenclature
- 2017
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Ingår i: GFF. - : Informa UK Limited. - 1103-5897 .- 2000-0863. ; 139:1, s. 1-2
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Forskningsöversikt (refereegranskat)abstract
- All geoscientists working with the geology of Sweden are invited to join a common effort to review Swedish geological nomenclature and the naming of geological units and other features. A new guide, the Guide for geological nomenclature in Sweden, provides advice for this review process. The Geological Survey of Sweden will set up a new open and freely accessible database for geological names, and a dedicated name committee with mandate to formally approve proposed names will supervise the naming process. The success of this vital long-term commitment will depend on active participation of the geoscientific community at large.
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| 11. |
- Malmborg, Julia S, 1988-, et al.
(författare)
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Worse health status, sleeping problems, and anxiety in 16-year-old students are associated with chronic musculoskeletal pain at three-year follow-up
- 2019
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Ingår i: BMC Public Health. - London : Springer Science and Business Media LLC. - 1471-2458. ; 19:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Chronic musculoskeletal pain is common in adolescents, and it has been shown that adolescents with pain may become young adults with pain. Pain often coincides with psychosomatic symptoms in adults, but little is known about longitudinal associations and predictors of pain in adolescents. The aim was to investigate chronic musculoskeletal pain and its associations with health status, sleeping problems, stress, anxiety, depression, and physical activity in 16-year-old students at baseline, and to identify risk factors using a three-year follow-up. Methods: This was a longitudinal study of 256 students attending a Swedish upper secondary school. Questionnaires regarding chronic musculoskeletal pain and distribution of pain (mannequin), health status (EQ-5D3 L), sleeping problems (Uppsala Sleep Inventory), stress symptoms (single-item question), anxiety and depression (Hospital Anxiety and Depression Scale), and physical activity (International Physical Activity Questionnaire) were issued at baseline and follow-up. Student's t-test and chi2 test were used for descriptive statistics and logistic regression analyses were used to study associations between chronic pain and independent variables. Results: Fifty-two out of 221 students at baseline (23.5%) and 39 out of 154 students at follow-up (25.3%) were categorized as having chronic musculoskeletal pain. Chronic musculoskeletal pain at follow-up was separately associated with reporting of an EQ-5D value below median (OR 4.06, 95% CI 1.83-9.01), severe sleeping problems (OR 3.63, 95% CI 1.69-7.82), and possible anxiety (OR 4.19, 95% CI 1.74-10.11) or probable anxiety (OR 3.82, 95% CI 1.17-12.48) at baseline. Similar results were found for associations between chronic musculoskeletal pain and independent variables at baseline. In multiple logistic regression analysis, chronic musculoskeletal pain at baseline was a predictor of chronic musculoskeletal pain at follow-up (OR 2.99, 95% CI 1.09-8.24, R-2 = 0.240). Conclusion: Chronic musculoskeletal pain at baseline was the most important predictor for reporting chronic musculoskeletal pain at the three-year follow-up, but a worse health status, severe sleeping problems, and anxiety also predicted persistence or development of chronic musculoskeletal pain over time. Interventions should be introduced early on by the school health services to promote student health.
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| 12. |
- Malmborg, Julia, 1988-, et al.
(författare)
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Sleeping Problems and Anxiety is Associated to Chronic Multisite Musculoskeletal Pain in Swedish High School Students
- 2018
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 77:Suppl. 2, s. 226-226
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Background: The relationship between chronic multisite musculoskeletal pain (CMP) and sleep is complex, where pain can lead to sleeping problems and lack of sleep can intensify the pain perception. Most previous studies relates to adults, but adolescents may also suffer from CMP, and there is a need for more knowledge regarding the relationships between CMP and sleeping problems, stress, anxiety, depression, and health status.Objectives: To study background factors associated to CMP in first year Swedish high school students.Methods: First year Swedish high school students (n=296) were invited to complete questionnaires on chronic pain (mannequin with 18 body regions), sleeping problems (Uppsala Sleep Inventory, four items scored from 1–5), stress (ELO questions, scored from 1–5), anxiety and depression (Hospital Anxiety and Depression Scale, scored from 0–21), health status (EQ-5D, scored from 0 to 1, worst to best) and physical activity (International Physical Activity Questionnaire, categorised into low, moderate and high levels). Stress and sleeping items were dichotomized into 1–3 points (best) vs 4–5 points (worst). Individuals scoring at least severe problems (4 points) at one or more sleeping items were classified as having severe sleeping problems. HADS were categorised as non-cases (0–7), possible7–10 and probable cases (11–21 points). Students were grouped as having CMP (pain present in ≥3 regions) or not (no chronic pain or chronic pain in 1–2 regions). Multiple logistic regression analyses (adjusted for sex) with CMP as dependent variable were performed in SPSS, version 24.Results: 254 students (86% of total sample, 87 boys and 167 girls) with a mean age of 16.1 (SD 0.6) years participated in the study. CMP was present in 25 (9.8%) students with no differences between boys and girls (8.0% vs 10.8%; p=0.488). Having CMP was associated with reporting severe sleeping problems (OR 2.49, 95% CI: 1.06 to 5.81, p=0.035) with initiating sleep, maintaining sleep, early morning awakenings and/or not feeling restored after sleep in comparison to the other students. Students with CMP were more likely to be categorised as probable cases for anxiety (OR 3.06, 95% CI: 1.09 to 8.61, p=0.034), but there were no associations for possible cases for anxiety (OR 1.15, 95% CI: 0.38 to 3.51, p=0.800), possible cases (OR 2.03, 95% CI: 0.63 to 6.54), or probable cases for depression (OR 3.35, 95% CI: 0.33 to 33.83). There was a nearly significant association between stress and belonging to the CMP group (OR 2.31, 95% CI: 0.97 to 5.53, p=0.059). A higher self-reported health status was associated to a lower likelihood for CMP (OR 0.04, 95% CI: 0.01 to 0.27, p=0.001). Distribution of physical activity levels of low, moderate and high was not significantly associated to having CMP in comparison with not having it.Conclusions: One in ten high school students fulfilled criteria for having chronic multisite musculoskeletal pain. CMP was associated to sleeping problems, anxiety, and a worse health status. The results from this study may be used by school health-care professionals in their preventive work to promote student’s health.Disclosure of Interest: None declared
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| 13. |
- Scott, Robert A., et al.
(författare)
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Large-scale association analyses identify new loci influencing glycemic traits and provide insight into the underlying biological pathways
- 2012
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Ingår i: Nature Genetics. - : Springer Science and Business Media LLC. - 1061-4036 .- 1546-1718. ; 44:9, s. 991-1005
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Tidskriftsartikel (refereegranskat)abstract
- Through genome-wide association meta-analyses of up to 133,010 individuals of European ancestry without diabetes, including individuals newly genotyped using the Metabochip, we have increased the number of confirmed loci influencing glycemic traits to 53, of which 33 also increase type 2 diabetes risk (q < 0.05). Loci influencing fasting insulin concentration showed association with lipid levels and fat distribution, suggesting impact on insulin resistance. Gene-based analyses identified further biologically plausible loci, suggesting that additional loci beyond those reaching genome-wide significance are likely to represent real associations. This conclusion is supported by an excess of directionally consistent and nominally significant signals between discovery and follow-up studies. Functional analysis of these newly discovered loci will further improve our understanding of glycemic control.
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| 14. |
- Walford, G. A., et al.
(författare)
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Genome-wide association study of the modified stumvoll insulin sensitivity index identifies BCL2 and FAM19A2 as novel insulin sensitivity loci
- 2016
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Ingår i: Diabetes. - : American Diabetes Association. - 0012-1797 .- 1939-327X. ; 65:10, s. 3200-3211
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Tidskriftsartikel (refereegranskat)abstract
- Genome-wide association studies (GWAS) have found few common variants that influence fasting measures of insulin sensitivity. We hypothesized that a GWAS of an integrated assessment of fasting and dynamic measures of insulin sensitivity would detect novel common variants. We performed a GWAS of the modified Stumvoll Insulin Sensitivity Index (ISI) within the Meta-Analyses of Glucose and Insulin-Related Traits Consortium. Discovery for genetic association was performed in 16,753 individuals, and replication was attempted for the 23 most significant novel loci in 13,354 independent individuals. Association with ISI was tested in models adjusted for age, sex, and BMI and in a model analyzing the combined influence of the genotype effect adjusted for BMI and the interaction effect between the genotype and BMI on ISI (model 3). In model 3, three variants reached genome-wide significance: Rs13422522 (NYAP2; P = 8.87 × 10-11), rs12454712 (BCL2; P = 2.7 × 10-8), and rs10506418 (FAM19A2; P = 1.9 × 10-8). The association at NYAP2 was eliminated by conditioning on the known IRS1 insulin sensitivity locus; the BCL2 and FAM19A2 associations were independent of known cardiometabolic loci. In conclusion, we identified two novel loci and replicated known variants associated with insulin sensitivity. Further studies are needed to clarify the causal variant and function at the BCL2 and FAM19A2 loci. © 2016 by the American Diabetes Association.
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| 15. |
- Williamson, Alice, et al.
(författare)
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Genome-wide association study and functional characterization identifies candidate genes for insulin-stimulated glucose uptake
- 2023
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Ingår i: Nature Genetics. - : Springer Nature. - 1061-4036 .- 1546-1718. ; 55:6, s. 973-983
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Tidskriftsartikel (refereegranskat)abstract
- Distinct tissue-specific mechanisms mediate insulin action in fasting and postprandial states. Previous genetic studies have largely focused on insulin resistance in the fasting state, where hepatic insulin action dominates. Here we studied genetic variants influencing insulin levels measured 2 h after a glucose challenge in >55,000 participants from three ancestry groups. We identified ten new loci (P < 5 × 10-8) not previously associated with postchallenge insulin resistance, eight of which were shown to share their genetic architecture with type 2 diabetes in colocalization analyses. We investigated candidate genes at a subset of associated loci in cultured cells and identified nine candidate genes newly implicated in the expression or trafficking of GLUT4, the key glucose transporter in postprandial glucose uptake in muscle and fat. By focusing on postprandial insulin resistance, we highlighted the mechanisms of action at type 2 diabetes loci that are not adequately captured by studies of fasting glycemic traits.
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| 16. |
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| 17. |
- Åsenlöf, Pernilla, et al.
(författare)
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Step-Up : An Innovative Stepped-Care Protocol for Tailored Behavioral Medicine Treatment in the Management of Musculoskeletal Pain in Primary Care
- 2013
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Books. - 0003-4967 .- 1468-2060. ; 72:Suppl. 3, s. A120-A120
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Tidskriftsartikel (refereegranskat)abstract
- Background: Multimodal rehabilitation and tailored behavioral medicine treatments should be provided to patients suffering from persistent and activity limiting pain according to current state-of-science. There is also evidence that a minimal intervention including 'stay-active advice' can produce effects comparable to effects of comprehensive treatment packages. Nevertheless, there is a gap of knowledge regarding which individuals who benefit the most from which modalities of pain treatment, at what time point, and with the highest cost-effectiveness. Accordingly, we have set up an innovative stepped-care protocol for the management of musculoskeletal pain in primary care, which is evaluated in a randomized controlled trial.Objectives: The aim is to compare effects and cost-effectiveness of a stepped care model including advice and tailored behavioral medicine pain treatment (experimental condition) with a stepped care model including advice and physical exercises (comparison condition) for patients with low back and neck pain and/or widespread pain including fibromyalgia in primary care. A further aim is to characterize patients who benefit/do not benefit from the respective steps i.e. treatments varying in dose and content.Methods: A stratified randomized stepped care design is applied. Stratification is based on primary care center and psychological risk profile. A consecutive selection is performed at primary care centers in southern, central and northern Sweden. After having received a minimal intervention (step 1) comprising 'stay-active advice', participants scoring high on the Örebro Musculoskeletal Pain Questionnaire (ÖMPQ) according to preset criteria are randomly allocated to an eight-week treatment in step 2. The experimental condition includes supervised physical exercises integrated with either (a) graded activity, or (b) hierarchical graded exposure depending on psychological risk profile. The comparison condition includes supervised physical exercises irrespective of risk profile. Primary outcome is pain-related disability complemented with a comprehensive set of secondary outcomes adhering to the IMMPACT recommendations.Results: The stepped-care design will be presented including illustrations of conclusions possible to draw with this kind of innovative design.Conclusions: There is a call for stepped-care interventions within pain intervention research, particularly in the primary care setting. However, published studies are still lacking. This study will contribute to an important progression of behavioral medicine pain treatments by the way treatments are tailored in accordance with psychological risk profile. This will be discussed to stimulate research activities and collaboration within this area of research and clinical implementation.
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| 18. |
- Abelsson, Tobias, et al.
(författare)
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Evidence-based practice in primary healthcare from the managerial point of view - a national survey
- 2021
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Ingår i: BMC Health Services Research. - : Springer Science and Business Media LLC. - 1472-6963. ; 21:1
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Tidskriftsartikel (refereegranskat)abstract
- Background The vast availability of and demand for evidence in modern primary healthcare force clinical decisions to be made based on condensed evidence in the form of policies and guidelines. Primary healthcare managers play a key role in implementing these governing documents. Thus, the aim of this article is to investigate the use and availability of evidence-based practice resources from the perspective of first-line primary healthcare managers. Methods The study is based on a national survey of primary healthcare managers, consisting of 186 respondents, recruited nationally from Sweden. The data was analysed using empirically constructed concepts and validated using factor analysis. A chi-square test was utilized to determine the statistical significance of comparisons. Associations between variables were calculated using Spearman's correlation coefficients. All tests were two-sided, and the significance level was set to 0.05. Results A majority (97 %) of managers stated that guidelines and policy documents impacted primary healthcare; 84 % of managers observed a direct effect on daily practices. Most of the managers (70 %) stated that some adaptation was needed when new evidence was introduced. The managers emphasized the importance of keeping themselves updated and open to new information about work routines (96 %). Conclusions The study illustrates a nearly unanimous response about the influence of clinical evidence on daily practice. The emphasis on the importance of all staff members keeping their professional knowledge up to date is viewed as a direct result of this effect on daily practice. An information-dense organization such as a primary healthcare organization would have much to gain from increased cooperation with regional information resources such as clinical libraries.
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| 19. |
- Abelsson, Tobias, et al.
(författare)
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Quality and availability of information in primary healthcare: the patient perspective
- 2020
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Ingår i: Scandinavian Journal of Primary Health Care. - : Informa UK Limited. - 0281-3432 .- 1502-7724. ; 38:1, s. 33-41
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To explore lived experiences of patients communicating with and receiving information from primary health care. Design: Qualitative study analysing transcribed interviews by descriptive content analysis. Setting: Recruitment and interviews took place in southern Sweden in three primary care centres where privacy and undisturbed interview environments was ensured. Subjects: 17 primary care patient informants, 9 men and 8 women aged 31 - 84 years with varying educational levels from primary school to post graduates. Main outcome measures: Thematic categories and subcategories reporting the lived experience of the patients. Results: The analysis yielded three categories and identified as a main theme a feeling of unpredictability based on the emotional aspects of feeling lost and vulnerable when trying to access primary care. The category" Need for easy access" illustrated emotional aspects of importance to patients when contacting primary health care." Need for individual adaptation" described the need to individually adapt health related information." Information exchange" comprised experiences of information evaluation and understanding new information. Conclusions: Patients generally trusted the information received, but experienced a lack of communication, which evoked feelings of unpredictability and abandonment. Experiences of limited access to primary health care and the need for varying degrees of adaptation on the part of the individual were factors of concern for how patients experienced the care.
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| 20. |
- Abelsson, Tobias, et al.
(författare)
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The dilemma of the split between theory and reality as experienced by primary healthcare professionals: a mixed methods study of evidence-based practice in a primary care context
- 2024
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Ingår i: BMC PRIMARY CARE. - 2731-4553. ; 25:1
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundPrimary care depends upon a good information flow across professional and structural boundaries to provide the best care for patients. Previous research has mainly focused on Evidence-Based Practice (EBP) within specific professions. Mapping of pan-professional experiences of and attitudes to EBP in publicly funded clinical practice is necessary to deepen the understanding of EBP and its implementation. Thus, this study aimed to investigate healthcare professionals' experiences of and attitudes towards working in accordance with EBP in primary care.MethodsThe study used a convergent mixed methods design divided into two strands: a quantitative enquiry tool (Evidence-Based Practice Attitude Scale, EBPAS) and a set of qualitative interviews analysed by means of qualitative content analysis. Both strands included all primary care employees with patient interaction in the studied county (n = 625), including doctors, nurses, physiotherapists, psychologists and assistant nurses. Out of the original 625 healthcare professionals, 191 finished the first strand and 8 volunteered for the second strand (2 nurses, 2 physiotherapists, 1 psychiatrist and 3 doctors).ResultsThe EBPAS value of 2.8 (max 4) indicated a generally positive attitude towards EBP amongst the population, which was also evident in the interviews. However, there were additional experiences of not having the ability or resources to engage in EBP. This was illustrated by the theme that emerged from the qualitative content analysis: "The dilemma of the split between theory and reality". Due to the organisational and managerial focus on efficiency rather than quality of care, there were few or no incentives for promoting individual educational or research development.ConclusionsAlthough the general attitude towards EBP is positive, experiences of practising it differ. There is a need to increase knowledge of EBP concepts, requirements and implementation in the clinical setting. The absence of opportunities to do research and collegial debate about new ways of finding and implementing research-based evidence results might influence the quality of care.
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| 21. |
- Adill, Anders, et al.
(författare)
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Biologisk recipientkontroll vid Forsmarks kärnkraftverk : årsrapport för 2022
- 2023
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Forsmarks kärnkraftverk är Sveriges största elproducent. På grund av intag och utsläpp av kylvatten från havet som kyler processen i verket sker en påverkan på den omgivande kustvattenmiljön. Denna påverkan övervakas och analyseras i det pågående biologiska recipientkontrollprogrammet. Föreliggande årsrapport presenterar resultat i undersökningarna inom kontrollprogrammet för 2022 med fokus på samhällena av fisk, bentisk fauna (bottenlevande djur) och sjöfågel. Under 2022 producerade Forsmarks kärnkraftverk 25,5 terawattimmar (TWh) el i sina anläggningar, vilket var samma som föregående års produktionsrekord av elektricitet. Den rekordstora produktionen kan härledas till de senaste åren moderniseringar och livstidsförlängande åtgärder i anläggningarna, vilket resultaterat i effekthöjningar i kraftverket. Den höga produktionen under 2022 medförde därmed en hög omsättning på kylvatten. Utsläppsområdet för kylvatten, Biotestsjön, hade vattentemperaturer över 25ºC i 29 dagar under sommarperioden. På grund av revisionsarbeten på F2 under juli månad förekom inga extrema temperaturer över 29ºC i Biotestsjön, något som vanligtvis brukar förekomma under högsommaren. I utsläppsområdet för F3 noterades vattentemperaturer över 30°C under endast ett dygn och med högsta notering 30,1°C i mitten av augusti. Förlusterna av fisk i silstationerna vid kylvattenintaget utgjordes som tidigare år av främst småväxta fiskarter och årsyngel. Totalt fastnade cirka 37,5 miljoner individer i silstationerna under provtagningsperioderna under 2022, närmare 20 miljoner färre jämfört med 57 miljoner individer som fastnade 2021. Det lägre antalet beror på att det fastnade färre årsyngel under hösten, som kan vara ett tecken på att det har varit sämre fiskreproduktion i närområdet under 2022, vilket också återspeglades i yngelundersökningarna i Forsmarksskärgård. Likt föregående år var storspigg den dominerande arten i provtagningarna och omfattade cirka 85 % av förlusterna under året. Resultatet för storspigg speglar sannolikt artens stora förekomst i omgivande kust- och havsområden. Antalet ålar som fastnade i silstationen var relativt litet. Till skillnad från tidigare år var förlusterna av ål högre under våren än på hösten, med fler småväxta individer. Genom framtagen metodik kunde totalt fem ålar tas hand om och återutsättas till havet levande. Under de senaste åren har varmvattenarterna mört, björkna och sutare blivit allt vanligare i silstationerna, sannolikt en effekt av de gynnsamma förhållandena i Biotestsjön för lek hos dessa arter. Undersökningarna i Biotestsjön under våren visade att tätheterna av fisk var de absolut största som någonsin observerats. De arter som förekommer i störst omfattning var likt föregående år mört, björkna, abborre och sarv. Likt tidigare fanns tydliga tecken på att stora mängder fisk lockas till Biotestsjöns varma vatten för lek. Förutom stora mängder lekmogen mört och abborre förekom höga tätheter av björkna under våren. Under senare år förefaller även tätheterna av gädda och sutare ha ökat i området. För ålen däremot är utvecklingen den motsatta och förekomsten av arten är låg i jämförelse med tidigare år. Till skillnad från nätprovfiskena i Forsmarks skärgård påträffas inga så kallade kallvattenarter i Biotestsjön, såsom strömming, nors, sik och tånglake. För varmvattenarter som mört och abborre visade resultaten att förhållandena i Biotestsjön var goda under 2022, då både tillväxt och kondition låg på goda nivåer. Under hösten 2022 noterades flera äldre individer av abborre vid provfiskena i Biotestsjön; 7 % av undersökta abborrar var fyra år eller äldre. Tidigare år har nästintill samtliga abborrar varit tre år eller yngre. I Forsmarks skärgård visade undersökningarna att tätheterna av fisk var höga om än något lägre jämfört med rekordfångsterna 2021. Fångsterna för de flesta arterna var något lägre än föregående år, men de mindre totala fångsterna var till stor del ett resultat av de förhållandevis låga antalet fångade mörtar i Forsmark. Förekomsten av mört i undersökningsområdet har under nästintill hela provfiskeperioden uppvisat en negativ utveckling, men har med de stora fångsterna under de senaste tre åren visat på en möjlig återhämtning. Det Sammanfattning låga antalet mörtar i årets provfisken i kombination med den förhållandevis låga förekomsten i silstationen skulle kunna tyda på en generell minskning av mört i Forsmarks skärgård. Ett fåtal individer registrerades av sutare och vimma, två karpfiskar (Cyprinidae) som vanligtvis inte förekommer i provfisket, men som de senaste åren blivit alltmer vanliga i fisket. Under 2022 års undersökningar av mjukbottenfauna registrerades totalt tio arter i Forsmark och femton arter i referensområdet Finbofjärden. Likt tidigare år var arttätheten högre i referensområdet än i Forsmark på både djupa och medeldjupa bottnar. Förekomsten av nyckelarten vitmärla var lägre än föregående år på samtliga stationer både i Finbofjärden och Forsmarks skärgård. Alla hårdbottenstationer frånsett Borgarna hade ett högre artantal än föregående år, men på alla stationer utom Plymen var individtätheten lägre. I Biotestsjön hade individtätheten mer än halverats jämfört med senaste året. Förändringen beror främst på den ovanligt låga förekomsten av tångmärla. Den låga förekomsten kan troligtvis kopplas till de stora mängderna röd pungräka som tillkommit på lokalen. Den röda pungräkan hittades för första gången under 2021 då en enda individ registrerades, medan under 2022 hittades nästan 280 individer per artificiellt substrat. Antalet sjöfåglar i inventeringsområdet var fortsatt hög under 2022. De höga förekomsterna kan förklaras med att antalet mellanskarv i undersökningsområdet dubblerades jämfört med 2021. Den största mängden mellanskarv observerades i Biotestsjön och likt tidigare år noterades misslyckade häckningsförsök. Biotestsjön är det enskilt viktigaste området för sjöfågel i Forsmarks skärgård följt av Asphällafjärden utanför intagskanalen. Utsläppet av varmt kylvatten från kärnkraftverket in i Biotestsjön ger bra förutsättningar till hög produktion av vegetation, bottenlevande djur och fisk samt en isfri yta under vintern. Detta ger gynnsamma förhållanden för sjöfågel under hela året men särskilt under häckningstiden och vinter. Antalet viggar i Forsmarks skärgård var lägre under 2022 jämfört med föregående år, trots detta var viggen tillsammans med mellanskarven de mest vanliga förekommande arterna. Förekomsterna av knölsvan var fortsatt hög i Forsmarks skärgård, trots att antalet var något lägre än föregående år. Det finns skillnader för vilka funktionella grupper som nyttjar de olika områdena i inventeringsområdet. Fisk- och växtätande fåglar föredrar Biotestsjön året om medan bottendjursätande fåglar visar skillnader säsongsvis med en täthetstopp i Biotestsjön under hösten och i Asphällafjärden under vintern.
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| 22. |
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| 23. |
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| 24. |
- Aili, Katarina, 1980-, et al.
(författare)
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Long-term trajectories of chronic musculoskeletal pain: a 21-year prospective cohort latent class analysis
- 2021
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Ingår i: Pain. - Philadelphia, PA : Ovid Technologies (Wolters Kluwer Health). - 0304-3959 .- 1872-6623. ; 162:5, s. 1511-1520
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Tidskriftsartikel (refereegranskat)abstract
- Our knowledge of the prevalence, impact, and outcomes of chronic pain in the general population is predominantly based on studies over relatively short periods of time. The aim of this study was to identify and describe trajectories of the chronic pain status over a period of 21 years. Self-reported population data (n = 1858) from 5 timepoints were analyzed. Pain was categorized by: no chronic pain (NCP), chronic regional pain (CRP), and chronic widespread pain (CWP). Latent class growth analysis was performed for identification of trajectories and logistic regression analysis for identification of predictors for pain prognosis. Five trajectories were identified: (1) persistent NCP (57%), (2) migrating from NCP to CRP or CWP (5%), (3) persistent CRP or migration between CRP and NCP (22%), (4) migration from CRP to CWP (10%), and (5) persistent CWP (6%). Age, sleeping problems, poor vitality, and physical function at baseline were associated with pain progression from NCP. Female gender, seeking care for pain, lack of social support, poor physical function, vitality, and mental health predicted poor pain prognosis among those with CRP. In conclusion, chronic pain was common in the population including 6% reporting persistent CWP, although the majority persistently reported NCP. Most people had stable pain status, but some had ongoing change in pain status over time including people who improved from chronic pain. It was possible to identify clinically relevant factors, characterizing trajectories of chronic pain development, that can be useful for identifying individuals at risk and potential targets for intervention.
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| 25. |
- Aili, Katarina, 1980-, et al.
(författare)
-
Long term trajectories of chronic widespread pain : a 21-year prospective cohort latent class analysis
- 2019
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Ingår i: Annals of the Rheumatic Diseases. - London, UK : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 78:Suppl 2, s. 239-239
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Tidskriftsartikel (refereegranskat)abstract
- Background: Chronic widespread pain (CWP) is common (population prevalence of approximately 10%) and has a significant impact on the individual, healthcare, and society. Currently little is known about the actual course of CWP over time, in particular the pathways to the development and maintenance of CWP. One useful way to understand these pathways is to identify common clusters of people who share pain trajectories. Such information is clinically useful to identify factors that predict development, persistence, and resolution of CWP.Objectives: To identify different longitudinal pain trajectories over a period of 21 years.Methods: A 21-year longitudinal open-population cohort of n=1858 adults (aged 20-74) who completed surveys relating to their pain status in at least three of the five time points 1995, 1998, 2003, 2007, and 2016. Pain status (presence of persistent pain) was ascertained from a report of painful regions (0-18) on a pain mannequin and categorised into: NCP (No chronic pain), CRP (Chronic regional pain) and CWP (chronic widespread pain). Latent Class Growth Analysis (LCGA) was carried out based on these categories. Participants were assigned to a trajectory cluster where the posterior probability was the highest. Model fit was assessed by statistical indices and clinical interpretations of clusters.Results: LCGA identified five clusters describing different pathways of NCP, CRP and CWP over the 21 years. The cluster “Persistent NCP” was the most common pathway (n = 1052, 57%) representing those with no chronic pain over the whole time period. The “Persistent CRP or Migration from CRP to NCP” cluster included 411 individuals (22%) representing a group with stable or improving regional pain. In the groups who were shown to increase pain status, the “Migration from NCP to CRP or CWP” cluster included 92 individuals (5%), and there were 184 individuals (10%) in the cluster “Migration from CRP to CWP” representing a group with regional pain who developed CWP. The final cluster “Persistent CWP” included 119 individuals (6%) representing those with stable CWP throughout the time period. Figure 1 presents the mean number of pain sites over time by cluster.Conclusion: This study showed that whilst half of adults report no chronic pain over 21 years, a substantial proportion develop CWP or have persistent CWP over this time period. Whilst a common trajectory was movement from chronic regional pain to no chronic pain, a pattern of improving CWP was not seen suggesting this is an uncommon trajectory. This is the first study to show long-term trajectories for CWP, and further work is now required to understand factors that may identify individuals at risk of worsening pain status and factors that might promote improvement. These identified pathways of chronic pain over a lifespan improve the understanding of long-term development of chronic pain and chronic widespread pain. © Aili et al. 2019. No commercial re-use. See rights and permissions. Published by BMJ.
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| 26. |
- Aili, Katarina, 1980-, et al.
(författare)
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Passive coping strategies but not physical function are associated with worse mental health, in women with chronic widespread pain – a mixed method study
- 2019
-
Ingår i: Annals of the Rheumatic Diseases. - London, UK : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 78:Suppl 2, s. 2159-2159
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Chronic widespread pain (CWP) is a common condition (approximately 10% prevalence), that affects women twice as often as men. There is a lack of knowledge in how different coping strategies relates to health status during CWP development in a general population.Objectives: To explore different ways of coping with CWP and to relate the different coping strategies to health-related factors, before and after developing CWP.Methods: A sequential explorative mixed methods study including 19 women 45-67 of age, who had reported CWP in a survey 2016, but not in 1995. Individual interviews were analysed with a phenomenographic approach, and resulted in four categories of coping strategies. These categories were further explored with regard to four dimensions of health status (physical function, bodily pain, vitality and mental health) as measured by SF-36 (0-100, a lower score indicates more disability) and sleep problems measured both in 1995, and 2016.Results: The qualitative analysis revealed four categories representing different coping strategies, where each woman was labelled by the most dominant category; the mastering woman, the persistent woman, the compliant woman and the conquered woman. The first two categories emerged as being active coping strategies, and the latter two as passive. Women with passive strategies reported significantly lower vitality (median 57.5 vs 75, p=0.007) and worse mental health (median 54 vs 93, p=0.021) in 1995, before they had developed CWP compared with those with active coping strategies. No differences were seen between the groups on physical function, bodily pain or sleep.In 2016, there were still a difference between the passive and active group regarding mental health (median 56 vs 80, p=0.022), but not for vitality (median 35 vs 40, p=0.707). No differences were seen between the groups on physical function or bodily pain. All eight women with passive strategies reported problems with sleep in 2016, as compared to 6 of the 11 women with active strategies (p=0.045).Conclusion: Women that reported CWP in 2016, but not in 1995, described both active and passive coping strategies. The qualitative findings were associated with differences in vitality and mental health already in 1995, before they had developed CWP. Further, those with passive coping strategies reported worse health with regard to mental health and sleep problems in 2016. Interestingly, the groups did not differ in bodily pain or physical function neither in 1995 nor in 2016, which implicates the importance for the clinician to take the typical coping strategy into consideration, when meeting these patients in clinical settings. © Aili, Bergman, Bremander, Haglund & Larsson 2019. No commercial re-use. See rights and permissions. Published by BMJ.
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| 27. |
- Aili, Katarina, et al.
(författare)
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Sleep problems and fatigue as a predictor for the onset of chronic widespread painover a 5- and 18-year perspective : a 20-year prospective study
- 2018
-
Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 77, s. 87-87
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Tidskriftsartikel (refereegranskat)abstract
- Background: If localised pain represent one end of a pain spectra, with overall better general health, chronic widespread pain (CWP) and fibromyalgia represent the other end of the spectra with worse general health and more comorbidities with other somatic diseases and mental illness. Sleep problems and fatigue are common among individuals reporting CWP and previous research indicate that sleep problems may be an important predictor for pain prognosis.Objectives: The aim of this population-based study was to investigate if sleep problems and fatigue predict the onset of CWP 5 and 18 years later.Methods: In order to get more stable baseline classifications of CWP, a wash-out period was used, including only individuals who had not reported CWP (according to ACR 1990 criteria for fibromyalgia) at baseline (−98) and three years prior baseline (−95). In all, data from 1249 individuals entered the analyses for the 5 year follow-up (−03) and 791 entered for the 18 year follow-up (−16). Four parameters related to sleep (difficulties initiating sleep, maintaining sleep, early morning awakening and non-restorative sleep), and one parameter related to fatigue (SF-36 vitality scale) were investigated as predictors for CWP. Binary logistic regression analysis were used for analyses.Results: All investigated parameters predicted the onset of CWP five years later (problems with initiating sleep (OR 1.91; 1.16–3.14), maintaining sleep (OR 1.85; 1.14–3.01), early awakening (OR 2.0; 1.37–3.75), non-restorative sleep (OR 2.27; 1.37–3.75) and fatigue (OR 3.70; 1.76–7.84)) in a model adjusted for age, gender, socio-economy and mental health. All parameters except problems with early awakening predicted the onset of CWP also 18 years later. In all, 785 individuals did not report any of the sleeping problems at baseline (fatigue not included), 268 reported one of the problems, 167 two, 128 three and 117 subjects reported to have all four sleep problems. Reporting all four sleep problems was significantly associated with CWP at follow-up at both time points when adjusting for age, gender, socio economy and mental health (OR 4.00; 2.03–7.91 and OR 3.95; 1.90–8.20); adjusting for age, gender, socio economy and number of pain regions (OR 2.94; 1.48–5.82 and OR 2.65; 1.24–5.64) and in a model adjusting for age, gender, socio economy and pain severity (OR 2.97;1.53–5.76; and OR 3.02;1.47–6.21) for the 5 year and 18 year follow-up respectively, compared to not reporting any of the sleep problems at baseline.Conclusions: Both sleeping problems and fatigue predicts the onset of CWP 5- and 18 years later. The results highlight the importance of the assessment of sleep quality in the clinic.
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| 28. |
- Aili, Katarina, 1980-, et al.
(författare)
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Sleep problems and fatigue as predictors for the onset of chronic widespread pain over a 5-and 18-year perspective
- 2018
-
Ingår i: Bmc Musculoskeletal Disorders. - London : Springer Science and Business Media LLC. - 1471-2474. ; 19
-
Tidskriftsartikel (refereegranskat)abstract
- BackgroundPrevious research suggests that sleep problems may be an important predictor for chronic widespread pain (CWP). With this study we investigated both sleep problems and fatigue as predictors for the onset of CWP over a 5-year and an 18-year perspective in a population free from CWP at baseline.MethodsTo get a more stable classification of CWP, we used a wash-out period, including only individuals who had not reported CWP at baseline (1998) and three years prior baseline (1995). In all, data from 1249 individuals entered the analyses for the 5-year follow-up and 791 entered for the 18-year follow-up. Difficulties initiating sleep, maintaining sleep, early morning awakening, non-restorative sleep and fatigue were investigated as predictors separately and simultaneously in binary logistic regression analyses.ResultsThe results showed that problems with initiating sleep, maintaining sleep, early awakening and non-restorative sleep predicted the onset of CWP over a 5-year (OR 1.85 to OR 2.27) and 18-year (OR 1.54 to OR 2.25) perspective irrespective of mental health (assessed by SF-36) at baseline. Also fatigue predicted the onset of CWP over the two-time perspectives (OR 3.70 and OR 2.36 respectively) when adjusting for mental health. Overall the effect of the sleep problems and fatigue on new onset CWP (over a 5-year perspective) was somewhat attenuated when adjusting for pain at baseline but remained significant for problems with early awakening, non-restorative sleep and fatigue. Problems with maintaining sleep predicted CWP 18years later irrespective of mental health and number of pain regions (OR 1.72). Reporting simultaneous problems with all four aspects of sleep was associated with the onset of CWP over a five-year and 18-yearperspective, irrespective of age, gender, socio economy, mental health and pain at baseline. Sleep problems and fatigue predicted the onset of CWP five years later irrespective of each other.ConclusionSleep problems and fatigue were both important predictors for the onset of CWP over a five-year perspective. Sleep problems was a stronger predictor in a longer time-perspective. The results highlight the importance of the assessment of sleep quality and fatigue in the clinic.
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| 29. |
- Aili, Katarina, et al.
(författare)
-
Sleep problems and fatigue as predictors for the onset of chronic widespread pain over a 5- and 18-year perspective 11 Medical and Health Sciences 1117 Public Health and Health Services
- 2018
-
Ingår i: BMC Musculoskeletal Disorders. - : Springer Science and Business Media LLC. - 1471-2474. ; 19:1
-
Forskningsöversikt (refereegranskat)abstract
- Background: Previous research suggests that sleep problems may be an important predictor for chronic widespread pain (CWP). With this study we investigated both sleep problems and fatigue as predictors for the onset of CWP over a 5-year and an 18-year perspective in a population free from CWP at baseline. Methods: To get a more stable classification of CWP, we used a wash-out period, including only individuals who had not reported CWP at baseline (1998) and three years prior baseline (1995). In all, data from 1249 individuals entered the analyses for the 5-year follow-up and 791 entered for the 18-year follow-up. Difficulties initiating sleep, maintaining sleep, early morning awakening, non-restorative sleep and fatigue were investigated as predictors separately and simultaneously in binary logistic regression analyses. Results: The results showed that problems with initiating sleep, maintaining sleep, early awakening and non-restorative sleep predicted the onset of CWP over a 5-year (OR 1.85 to OR 2.27) and 18-year (OR 1.54 to OR 2.25) perspective irrespective of mental health (assessed by SF-36) at baseline. Also fatigue predicted the onset of CWP over the two-time perspectives (OR 3.70 and OR 2.36 respectively) when adjusting for mental health. Overall the effect of the sleep problems and fatigue on new onset CWP (over a 5-year perspective) was somewhat attenuated when adjusting for pain at baseline but remained significant for problems with early awakening, non-restorative sleep and fatigue. Problems with maintaining sleep predicted CWP 18 years later irrespective of mental health and number of pain regions (OR 1.72). Reporting simultaneous problems with all four aspects of sleep was associated with the onset of CWP over a five-year and 18-yearperspective, irrespective of age, gender, socio economy, mental health and pain at baseline. Sleep problems and fatigue predicted the onset of CWP five years later irrespective of each other. Conclusion: Sleep problems and fatigue were both important predictors for the onset of CWP over a five-year perspective. Sleep problems was a stronger predictor in a longer time-perspective. The results highlight the importance of the assessment of sleep quality and fatigue in the clinic.
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| 30. |
- Aili, Katarina, et al.
(författare)
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Women’s experiences of coping with chronic widespread pain – a qualitative study
- 2018
-
Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 77, s. 1815-1815
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Tidskriftsartikel (refereegranskat)abstract
- Background: Approximately ten percent of the population report chronic widespread pain (CWP), the condition is more common among women than men. For most people, the pain interferes with many aspects of every-day life and implies large consequences. However, the group reporting CWP is heterogeneous and there is a need for better understanding of the different strategies used for coping with pain in every-day life.Objectives: The purpose of this study was to describe women’s experiences of how to cope with CWP.Methods: The study had a descriptive design with a qualitative content analysis approach. Individual interviews were conducted with 19 women, 31–66 of age, who had reported CWP in a survey 2016. CWP was defined according to the 1990 ACR criteria for fibromyalgia. To be considered chronic, the pain should have persisted for more than three months during the last 12 months. A manifest qualitative content analysis was used to analyze the main question “How do you cope with your chronic widespread pain?” The analysis resulted in four categories.Results: Women described their coping with CWP in four different ways; to take control, to continue as usual, to follow instructions and to rest. To take control meant to make deliberate decisions to handle everyday day life. It also meant to take care of oneself, to think positive and to exercise at an adequate level. To continue as usual meant not to listen to body signals and either to ignore or accept the pain. To follow instructions meant listening to the health professionals and following advices, but without taking any part of the responsibility for the treatment outcome. To rest meant to perceive an unreasonable need for recovery, to resign and let the pain set the terms for the daily living.Conclusions: Women expressed different ways of coping with CWP including both active and passive strategies. The coping strategies included two dimensions, where one ranged from actively taking control over the pain, to passively following instructions and the other from actively continue as usual by either accepting or ignoring the pain to passively rest and being mastered by pain.
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| 31. |
- Al-Naqshabandy, Mohammed Salim, et al.
(författare)
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Effect of spatial variability of the strength properties in lime-cement columns on embankment stability
- 2012
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Ingår i: Geotechnical Special Publication. - Reston, VA : American Society of Civil Engineers. - 0895-0563. ; 228, s. 231-242
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Tidskriftsartikel (refereegranskat)abstract
- Spatial variability with respect to the strength in lime-cement columns is an unavoidable source of uncertainty that should be considered in design. Current design method for the assessment of embankment stability, based on the deterministic factor of safety, cannot address the effect of spatial variability. Reliability-based design methodology is a powerful tool that can be used to integrate the variability into the analysis. In this paper, the spatial variability with respect to the undrained shear strength in the soil and in the columns was evaluated based on CPT test. The first order second moment (FOSM) reliability method was applied to address the impact of the spatial variability of the strength in the soil and in the columns on the reliability of an embankment founded on improved soil by lime-cement columns. The paper also presents a technique to evaluate the variance reduction factor over the failure surface. The results propose that the undrained shear strength in the soil and in the columns can be modelled following normal or lognormal distribution. The analysed example show that the reliability increased significantly when the spatial variability was considered
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| 32. |
- Al-Naqshabandy, Mohammed Salim, et al.
(författare)
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Strength variability in lime-cement columns based on CPT data
- 2012
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Ingår i: Ground Improvement. - : Thomas Telford Ltd.. - 1365-781X .- 1751-7621. ; 165:1, s. 15--30
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Tidskriftsartikel (refereegranskat)abstract
- Natural and improved soils have relatively high inherent property variability that should be taken into consideration in design. Investigations of the spatial variability in lime-cement columns are important since they provide a rational quantification of the variability parameters needed for a reliability-based design analysis of geotechnical systems. Statistical analyses are used to evaluate the spatial variability parameters, i.e. the mean, the variance, and the scale of fluctuation, which is the distance within which soil properties reveal strong correlation. This paper presents a field test, in which 30 CPT soundings were performed and analyzed statistically in order to address the spatial variability in a group of lime-cement columns, with respect to the cone tip resistance. The objective of this paper is to describe the statistical analyses and to make a contribution to the empirical knowledge about strength variability in a volume of lime-cement columns. Stationarity has been assessed, and the scale of fluctuation has been evaluated in the vertical and horizontal directions. Random field theory was used based on the sample autocorrelation function ACF. The scale of fluctuation was found to be within the range of 0.2-0.7 m and 2-3 m in the vertical and horizontal direction, respectively. A simple design consideration shows that the variance reduction factor has a major influence on the determination of the design value.
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| 33. |
- Almquist-Tangen, Gerd, et al.
(författare)
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Consuming milk cereal drinks at one year of age was associated with a twofold risk of being overweight at the age of five
- 2019
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Ingår i: Acta Paediatrica. - Chichester : Wiley-Blackwell Publishing Inc.. - 0803-5253 .- 1651-2227. ; 108:6, s. 1115-1121
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Tidskriftsartikel (refereegranskat)abstract
- Aim: We previously reported that consuming milk cereal drinks at six months of age was associated with a high body mass index (BMI) at 12 and 18 months. This study examined the association between daily consumption at 12 months of age and BMI at the age of five.Methods: We followed up 1870/2666 (70%) children recruited at birth in 2007–2008 for the Swedish longitudinal population‐based Halland Health and Growth Study a mean of 5.09 ± 0.28 years. Feeding practices were obtained from parental questionnaires, and anthropometric data were collected by child health nurses.Results: At five years, 11.6% were overweight and 2.3% were obese. Milk cereal drinks were consumed by about 85% and 10% at one and five years of age, respectively. Consumption at 12 months was associated with almost double the risk of being overweight at five years of age (adjusted odds ratio 1.94, 95% confidence interval 1.08–3.50). Other risk factors were a family history of obesity, low paternal educational level and paternal smoking.Conclusion: Consuming milk cereal drinks daily at 12 months was associated with a twofold risk of being overweight at five years. These findings may affect the counselling guidelines used at child healthcare centres. Copyright © 2019 John Wiley & Sons, Inc. All rights reserved
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| 34. |
- Almquist-Tangen, Gerd, et al.
(författare)
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Factors associated with discontinuation of breastfeeding before 1 month of age
- 2012
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Ingår i: Acta Paediatrica. - Chichester : Wiley-Blackwell Publishing Inc.. - 0803-5253 .- 1651-2227. ; 101:1, s. 55-60
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Breastfeeding is associated with many benefits for both mother and child. Initiation rates are high in Sweden. Recently a slight decline is seen.AIM: The aim of this study was to assess factors associated with discontinuation of breastfeeding during the first 4 weeks.METHOD: A population-based longitudinal birth cohort study recruiting from 2007 to 2008 in south-western Sweden. At the first visit to the child health centre, parents were asked to complete a questionnaire. Also, the infants' height, weight, head and waist circumference were collected. Response rate was 69.2%.RESULTS: Twenty-seven per cent of mothers had breastfeeding problems. In a multivariate analysis, there was a negative correlation between breastfeeding and use of pacifier (OR 3.72; CI 2.09-6.63), maternal smoking (OR 2.09; CI 1.08-4.05) and breastfeeding problems (OR 2.54; CI 1.73-3.71). Breastfeeding problems were correlated with poor sucking technique (OR 2.96; CI 2.14-4.07), support from maternity ward (OR 2.56; CI 2.05-3.19) and perceived poor weight gain (OR 1.37; CI 1.00-1.86).CONCLUSION: Many mothers reported breastfeeding problems that are associated with an early cessation. This is preventable with support, but the timing is crucial. To promote breastfeeding, the support from the child health centres must be tailored with the maternal perspective in mind.© 2011 Foundation Acta Pædiatrica
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| 35. |
- Almquist-Tangen, Gerd, et al.
(författare)
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Influence of neighbourhood purchasing power on breastfeeding at four months of age : a Swedish population-based cohort study
- 2013
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Ingår i: BMC Public Health. - London : BioMed Central. - 1471-2458. ; 13:1
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Parental socioeconomic status (SES) is an important determinant in child health, influencing beneficial factors such as breastfeeding. A better understanding of the influence of neighbourhood-level SES measures, relating to spatial determinants, might lead to targeted actions to promote breastfeeding during infancy.METHODS: A cross-sectional study analysis the association between breastfeeding at four months of age and neighbourhood purchasing power, taking account of individual-level variables including maternal age, smoking and parental level of education. Data were obtained from a prospective population- based cohort study recruited from birth in 2007-2008 in the Halland region, southwestern Sweden. Questionnaire data on the individual-level variables and the outcome variable of breastfeeding at four months (yes/no) were used (n=2,407). Each mother was geo-coded with respect to her residential parish (there are 61 parishes in the region) and then stratified by parish-level household purchasing power. It emerged that four neighbourhood characteristics were reasonable to use, viz. <10%, 10-19%, 20-29% and ≥ 30% of the resident families with low purchasing power.RESULTS: The proportion of mothers not breastfeeding at four months of age showed a highly significant trend across the neighbourhood strata (p=0.00004): from 16.3% (< 10% with low purchasing power) to 29.4% (≥ 30% with low purchasing power), yielding an OR of 2.24 (95% confidence interval: 1.45-3.16). After adjusting for the individual-level variables, the corresponding OR=1.63 (1.07-2.56) was significant and the trend across the strata was still evident (p=0.05). A multi-level analysis estimated that, in the neighbourhoods with ≥ 30% of the families with low purchasing power, 20% more mothers than expected, taking account of the individual-level factors, reported no breastfeeding at four months of age (≥ 95% posterior probability of an elevated observed-to-expected ratio).CONCLUSION: The neighbourhood purchasing power provided a spatial determinant of low numbers of mothers breastfeeding at four months of age, which could be relevant to consider for targeted actions. The elevated observed-to-expected ratio in the neighbourhoods with the lowest purchasing power points toward a possible contextual influence. © 2013 Almquist-Tangen et al.; licensee BioMed Central Ltd.
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| 36. |
- Almquist-Tangen, Gerd, et al.
(författare)
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Milk cereal drink increases BMI risk at 12 and 18 months, but formula does not
- 2013
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Ingår i: Acta Paediatrica. - Chichester : Wiley-Blackwell. - 0803-5253 .- 1651-2227. ; 102:12, s. 1174-1179
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Tidskriftsartikel (refereegranskat)abstract
- AIM: Infant feeding affects growth, obesity and life-long health. This study examined the impact of dietary patterns on body mass index (BMI) at 12 and 18 months.METHODS: We followed a cohort of 2,666 children recruited in 2007-2008. Feeding practices were obtained from parental questionnaires and anthropometric data collected by child health nurses.RESULTS: At six months, 58.3% of the infant were breastfed, but only 1.6% exclusively. Many had begun eating solids (91.8%), porridge (87.7%) or milk cereal drink (46.6%). Bottle-feeding at four months was not a risk factor for a high BMI (>1 SD) at 12 or 18 months. Milk cereal drink at six months increased the risk of a high BMI at 12 and 18 months respectively (OR 1.58, 95% CI 1.12-2.22, and 1.52, 1.07-2.17). Milk cereal drink use was increased by low parental education and maternal obesity and reduced by troubled sleep and parental group participation.CONCLUSION: Formula at four months did not predict a high BMI at 12 or 18 months. Milk cereal drink use at six months was a risk factor for a high BMI at 12 and 18 months. The choice of milk cereal drink was influenced by parental factors, especially educational levels. ©2013 Foundation Acta Pædiatrica. Published by John Wiley & Sons Ltd.
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| 37. |
- Almquist-Tangen, Gerd, et al.
(författare)
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What makes parents act and react? Parental views and considerations relating to "child health' during infancy
- 2017
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Ingår i: Journal of Child Health Care. - London : SAGE Publications. - 1367-4935 .- 1741-2889. ; 21:4, s. 415-423
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Tidskriftsartikel (refereegranskat)abstract
- Lifestyle factors and behaviours are adopted very early in life and tend to persist throughout life. Considering that the parents are the primary gatekeepers for their child's health, there is a need to gain more knowledge and deeper understanding about what causes parents to act and react in order for early preventive efforts to have any effect. The aim was to explore the parental views and considerations concerning child health' among parents with infants 8-10 months old. The sample was strategic and 16 parents (aged 23-41) were recruited from three child health centres in Sweden. Open-ended interviews were conducted and a qualitative, manifest content analysis approach was utilized. The parents described the subject child health' as a large, multifaceted concept. Three categories emerged during data analysis: developing a sixth sense, being affected by perceptions and believing health and ill health as a continuum. The parents perceived food and feeding issues as one of the most worrying aspects and a significant indicator of child health'. In order to meet the parents on their turf, the healthy health message' conveyed needs to take the parental perspective into consideration rather than attempting to educate the parents from predetermined assumption, belief and values.
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| 38. |
- Andersson, Helen, 1968, et al.
(författare)
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Individuals' Experiences of Being Screened for Hypertension in Dental Health Care – “No Big Deal”
- 2022
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Ingår i: Patient Preference and Adherence. - 1177-889X. ; 16, s. 1449-1456
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Tidskriftsartikel (refereegranskat)abstract
- Background: Hypertension is a common disease globally that accounts for the highest number of lost healthy life years and strongly associated with sequelae such as stroke and myocardial infarction. Early detection of individuals with high blood pressure can be ensured by screening also those who consider themselves “healthy”. Screening has both positive and negative effects where a diagnosis of hypertension can lead to worry about the future. These effects need to be elucidated in order to balance between benefit and harm before screening is introduced. The aim of the study was to describe individuals’ experiences of being screened for hypertension in dental health care. Methods: Data from individual semi-structured interviews, with twenty participants screened for cardiovascular risk factors in connection with dental examination and aged 55–80 years, were analysed by means of qualitative content analysis. Results: The results describe individuals’ experiences of blood pressure screening in dental health care by means of the following theme: “No big deal” based on two categories: “Convenient way of measuring blood pressure” and “Increased awareness of health”. Conclusion: The overall message from the interviews was that having one’s blood pressure measured when visiting the dentist was convenient, easy and “No big deal”. Blood pressure screening did not create any major concerns and contributed to an increased awareness of health.
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| 39. |
- Andersson, Helen, et al.
(författare)
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The outcome of two-step blood pressure screening in dental healthcare
- 2018
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Ingår i: Scandinavian Journal of Public Health. - : SAGE Publications. - 1403-4948 .- 1651-1905. ; 46:6, s. 623-629
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Tidskriftsartikel (refereegranskat)abstract
- Aim: The purpose of this study was to evaluate a two-step screening method for hypertension in dentistry regarding the number needed to screen (NNS) and positive predictive value (PPV) and to risk-classify those with newly diagnosed hypertension. Methods: In connection with their regular dental care check-up, 2025 subjects aged 40-75 years were screened for high blood pressure. Via a health questionnaire, data were collected concerning risk factors. Blood pressure was screened comprehensively in two steps, which included screening in a dental clinic and home measurements for one week. Recently discovered hypertensive participants were assessed for 10-year risk of cardiovascular mortality according to the guidelines of the European Society of Hypertension (ESH) and the European Society of Cardiology (ESC). Results: A total of 170 new hypertensive participants were found (NNS = 12; 95% confidence interval (CI): 11-13). The method yielded a PPV of 0.73 (95% CI: 0.68-0.78) and eliminated 84.8% of the false-positive participants. The results also showed that based on ESH/ESC risk estimation, 76.5% of those newly diagnosed hypertensive participants had a moderate or high risk of cardiovascular mortality within 10 years. Conclusions: The study shows that a two-step method for blood pressure screening in a dental setting including home measurement resulted in a high PPV and eliminated most of those with a false high blood pressure reading. The findings also show that two-step screening for hypertension is feasible in a larger population with more screening providers involved.
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| 40. |
- Andersson, Maria, et al.
(författare)
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Chronic widespread pain in patients with rheumatoid arthritis and the relation between pain and disease activity measures over the first 5 years
- 2013
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Ingår i: Journal of Rheumatology. - Toronto, ON : Journal of Rheumatology Publishing. - 0315-162X .- 1499-2752. ; 40:12, s. 1977-1985
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To study the prevalence of chronic widespread pain (ChWP), chronic regional pain (ChRP), and fibromyalgia in patients with early rheumatoid arthritis (RA) followed for 5 years after inclusion, and to study the effect of pain on measures of disease activity and function.METHODS: A questionnaire was sent to 1910 patients participating in the Better Anti-Rheumatic Pharmacotherapy study. The responders (73%) were divided into 3 groups according to the reported pain duration and distribution - patients having no chronic pain (NChP), ChWP, and ChRP. Outcome measures were the 28-joint Disease Activity Score (DAS28), the Health Assessment Questionnaire (HAQ), and C-reactive protein (CRP).RESULTS: Thirty-four percent of respondents reported ChWP, 46% ChRP, and 20% NChP. Patients reporting ChWP were more often women and had more pain and tender joints at inclusion. From 6 months to 5 years of followup, mean DAS28, visual analog scale (VAS) pain, VAS global health, and HAQ were significantly higher in the ChWP group than in the other groups. However, all groups showed a similar pattern in swollen joint count, erythrocyte sedimentation rate (ESR), and CRP. From 12 months the ChWP group was treated with prednisolone to a greater extent than the ChRP group, and it had a rate of treatment with disease-modifying antirheumatic drugs similar to that of the ChRP group.CONCLUSION: ChWP is a common feature in RA, more associated with high values for variables related to pain such as the DAS28 and HAQ than to indicators of ongoing inflammation such as swollen joint count, ESR, and CRP. Patients with ChWP should be identified so that adequate treatment also of the noninflammatory pain may be instituted.
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| 41. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
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Associations Between Chronic Widespread Pain, Pressure Pain Thresholds and Leptin in Individuals with Knee Pain
- 2022
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Previous studies have reported associations between obesity, chronic pain and increased pain sensitivity. The adipokine leptin has been suggested to be involved in the osteoarthritis process as well as in pain sensitisation.ObjectivesThe aim was to study associations between chronic widespread pain, pain sensitivity and leptin in individuals with knee pain.MethodsIn all, 306 individuals with knee pain were included in the Halland osteoarthritis cohort, ClinicalTrials.gov NCT04928170. Of those, 265 were included in this cross-sectional baseline study. The mean age (sd) was 51.6 (8.8) years, and 71% was women. The participants marked their painful areas on a pain figure with 18 predefined areas. They were categorised in three different pain groups according to the modified WP2019 definition (1), with knees excluded (due to highest goodness of fit): Chronic widespread pain (CWP), chronic regional pain (ChRP) if CWP was not met, and no chronic pain (NCP). The group with CWP were compared with those reporting no CWP (ChRP and NCP). The pressure pain thresholds (PPT) were measured using a computerised pressure algometry (AlgoMed, Medoc) on eight predefined tender points (trapezius (bilateral), right second rib, right lateral epicondyle, knees, gluteal (bilateral)) (2). Increased pain sensitivity was defined as having PPT in the lowest third in all tender points. Obesity was measured via waistline measurement and a bioimpedance (InBody 770) measuring BMI and visceral fat area (VFA). Serum-Leptin were analysed with an ELISA method (Alpco). Knee Injury and Osteoarthritis Outcome Score (KOOS) was used to describe the groups.ResultsIn this baseline study, 16% reported CWP, and 15% had low pain pressure thresholds at baseline in the study. Those fulfilling CWP were more often women, had higher BMI, VFA, and increased leptin levels and worse KOOS in four of five subscores, see Table 1A. The age and gender-adjusted leptin levels were 21.6 ng/ml (95% CI 18.2-25.0) in the group with no CWP vs. 35.5 ng/ml (95% CI 27.6-43.4) in the CWP group, p=0.002. In a logistic regression adjusting for age and gender, leptin was associated with reporting CWP OR 1.015 (95% CI 1.004-1.027, p= 0.008).Table 1.A Comparisons between those without CWP and those fulfilling CWP and table 1B comparisons between those not having low PPT and those with low PPT.ABNo CWPMean (sd)CWPMean (sd)p-valueNot Low PPTMean (sd)Low PPTMean (sd)p-valuen2104022639Age51.8 (8.7)52.8 (7.6)0.46552.1 (8.5)48.8 (9.9)0.030Gender, female n(%)67900.00472670.524BMI (kg/m2)26.2 (4.6)28.0 (5.0)0.02226.4 (4.9)27.5 (4.3)0.213VFA (cm2)107 (50)137 (56)0.001110 (54)127 (49)0.088Leptin (ng/ml)21.0 (23.9)39.0 (36.6)<0.00123.0 (26.0)31.8 (31.6)0.061CRP (mg/L)1.9 (2.7)2.2 (2.3)0.6022.0 (2.7)1.9 (1.8)0.825KOOSPain (0-100, worst to best)74 (15)61 (17)<0.00173 (15)65 (18)0.002Symptom (0-100, worst to best)72 (17)64 (18)0.01671 (17)67 (19)0.188ADL (0-100, worst to best)84 (13)69 (19)<0.00184 (14)72 (21)<0.001Sport/rec (0-100, worst to best)49 (26)34 (27)0.00149 (26)36 (25)0.009QoL (0-100, worst to best)53 (18)46 (20)0.05053 (18)45 (21)0.017BMI, body mass index; VFA, visceral fat area; CRP, C-reactive protein; KOOS, knee injury and osteoarthritis outcome score; ADL; function in daily living; sport/Rec, Function in sport and recreation; QOL, knee-related Quality of lifeThe participants with low PPT were younger and had a mean (sd) leptin 31.8 ng/ml (31.6) vs 23.0 (26.0), p=0.061 in the group not having low PPT, Table 1B. In a logistic regression adjusting for age and gender, leptin was associated with low PPT OR 1.016 (95% CI 1.004-1.029, p= 0.012).ConclusionThe pathophysiological mechanism causing widespread pain is probably multifactorial, involving both biological and physical factors. The adipokine leptin could be involved in some of these mechanisms, but longitudinal studies are needed to be able to study causal relationships.References[1]Wolfe F, et al. Scand J Pain. 2019;20:77-86.[2]Wolfe F, et al. Arthritis and rheumatism. 1990;33:160-72.Disclosure of InterestsNone declared
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| 42. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
-
Associations between chronic widespread pain, pressure pain thresholds and leptin in individuals with knee pain
- 2022
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- Background: Previous studies have reported associations between obesity, chronic pain and increased pain sensitivity. The adipokine leptin has been suggested to be involved in the osteoarthritis process as well as in pain sensitisation.Objective: The aim was to study associations between chronic widespread pain, pain sensitivity and leptin in individuals with knee pain.Method: In all, 306 individuals with knee pain were included in the Halland osteoarthritis cohort, ClinicalTrials.gov NCT04928170. Of those, 265 were included in this cross-sectional baseline study. The mean age (sd) was 51.6 (8.8) years, and 71% was women. The participants marked their painful areas on a pain figure with 18 predefined areas. According to their answer, they were categorised in three different pain groups according to the modified WP2019 definition (1), with knees excluded (due to highest goodness of fit): Chronic widespread pain (CWP), chronic regional pain (ChRP) if CWP was not met, and no chronic pain (NCP). The groupwith CWP were compared with those reporting no CWP (ChRP and NCP). The pressure pain thresholds (PPT) were measured using a computerised pressure algometry (AlgoMed, Medoc) on eight predefined tender points (trapezius (bilateral), right second rib, right lateral epicondyle, knees, gluteal (bilateral)) out of the total 18 points that are part of the definition of fibromyalgia (2). Increased pain sensitivity was defined as having PPT in the lowest third in all tender points. Obesity was measured via waistline measurement and a bioimpedance (InBody 770) measuring BMI, visceral fat area (VFA), and body fat percentage. Serum-Leptin were analysed with an ELISA method (Alpco). C-reactive protein (CRP) >1.0 mg/L were measured according to the current laboratory standards in Sweden. CRP below 1.0 mg/L, were further analysed with a sensitive CRP enzyme-linked immunosorbent assay (ELISA) method (Abnova). Knee Injury and Osteoarthritis Outcome Score (KOOS) was used to describe the groups.Result: In this baseline study, 16% reported CWP, and 15% had low pain pressure thresholds at baseline in the study. Those fulfilling CWP were more often women, had higher BMI, VFA, and increased leptin levels and worse KOOS in four of five subscores, see table 1A. The age and gender-adjusted leptin levels were 21.6 ng/ml (95% CI 18.2-25.0) in the group with no CWP vs. 35.5 ng/ml (95% CI 27.6-43.4) in the CWP group, p=0.002. In a logistic regression adjusting for age and gender, leptin was associated with reporting CWP OR 1.015 (95% CI 1.004-1.027, p= 0.008).The participants with low PPT were younger and had a mean (sd) leptin 31.8 ng/ml (31.6) vs 23.0 (26.0), p=0.061 in the group not having low PPT, table 1B. In a logistic regression adjusting for age and gender, leptin was associated with low PPT OR 1.016 (95% CI 1.004-1.029, p= 0.012).There were no increased CRP levels in any of the pain groups (CWP and low PPT), table 1A and B.Conclusion: The pathophysiological mechanism causing widespread pain is probably multifactorial, involving both biological and physical factors. The adipokin leptin could be involved in some of these mechanisms, but longitudinal studies are needed to be able to study causal relationships.
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| 43. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
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Associations between chronic widespread pain, pressure pain thresholds, leptin, and metabolic factors in individuals with knee pain
- 2023
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Ingår i: BMC Musculoskeletal Disorders. - London : BioMed Central (BMC). - 1471-2474. ; 24:1
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The aim was to study associations between chronic widespread pain, widespread pain sensitivity, leptin, and metabolic factors in individuals with knee pain. A secondary aim was to study these associations in a subgroup of individuals with normal BMI.METHOD: This cross-sectional study included 265 individuals. The participants were categorised into three different pain groups: Chronic widespread pain (CWP), chronic regional pain (ChRP), or no chronic pain (NCP). The pressure pain thresholds (PPTs) were assessed using computerised pressure algometry. Low PPTs were defined as having PPTs in the lowest third of all tender points. Leptin and metabolic factors such as BMI, visceral fat area (VFA), lipids, and glucose were also assessed.RESULT: Sixteen per cent reported CWP, 15% had low PPTs, and 4% fulfilled both criteria. Those who fulfilled the criteria for CWP were more often women, more obese, and had increased leptin levels. In logistic regression, adjusted for age and gender, leptin was associated with fulfilling criteria for CWP, OR 1.015 (95% CI 1.004-1.027, p = 0.008). In logistic regression, adjusted for age and gender, leptin was associated with low PPTs, OR 1.016 (95% CI 1.004-1.029, p = 0.012). Leptin was also associated with fulfilling both criteria, adjusted for age, sex, and visceral fat area (VFA), OR 1.030 (95% CI 1.001-1.060), p = 0.040.CONCLUSION: Leptin was associated with fulfilling the combined criteria for chronic widespread pain and low PPTs, even after adjusting for the visceral fat area (VFA). Longitudinal studies are needed to study the causal relationships between leptin and the development of widespread pain.
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| 44. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
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Associations between metabolic factors and radiographic knee osteoarthritis in early disease-a cross-sectional study of individuals with knee pain
- 2022
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Ingår i: Bmc Musculoskeletal Disorders. - London : Springer Science and Business Media LLC. - 1471-2474. ; 23:1
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Tidskriftsartikel (refereegranskat)abstract
- Objective Metabolic factors have been shown to be associated to severe radiographic knee osteoarthritis (RKOA). However, more knowledge is needed in early clinical knee osteoarthritis (KOA). The aim was to study associations between metabolic factors and radiographic knee osteoarthritis (OA) in individuals with knee pain. A second aim was to study associations between metabolic factors and RKOA in those with normal BMI and in those overweight/obese, respectively. Method This cross-sectional study included 282 individuals with knee pain (without cruciate ligament injury) and aged 30-67 years, and 70% women. Waist circumference, body mass index (BMI), proportion of fat and visceral fat area (VFA) were assessed. RKOA was defined as Ahlback grade 1 in at least one knee. Fasting blood samples were taken and triglycerides, cholesterol (total, low density lipoprotein (LDL) and high density lipoprotein (HDL)), C-reactive protein (CRP), glucose, HbA1C were analysed. Metabolic syndrome was defined in accordance with the International Diabetes Federation (IDF). Associations were analysed by logistic regression. Results Individuals with RKOA were older, had higher BMI, higher VFA, larger waist circumference and had increased total cholesterol, triglycerides and LDL-cholesterol, but not fasting glucose. There was no difference between the group with RKOA vs. non-radiographic group regarding the presence of metabolic syndrome. In a subgroup analysis of individuals with normal BMI (n = 126), those with RKOA had higher VFA, more central obesity, higher levels of CRP and total cholesterol, compared with individuals without RKOA. In individuals with obesity, age was the only outcome associated to RKOA. Conclusion There were clear associations between metabolic factors and RKOA in individuals with knee pain, also in those with normal BMI. In individuals with obesity age was the only variable associated to RKOA.
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| 45. |
- Andersson, Maria L.E., et al.
(författare)
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Cohort profile: the Halland osteoarthritis (HALLOA) cohort-from knee pain to osteoarthritis: a longitudinal observational study in Sweden
- 2022
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Ingår i: Bmj Open. - London : BMJ. - 2044-6055. ; 12:7
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The overall objective in this study is to investigate the early development of radiographic knee osteoarthritis (OA) and its association with hand or/and knee OA, metabolic diseases, biomarkers, chronic pain, physical function and daily physical activity types. Participants The Halland osteoarthritis (HALLOA) cohort is a longitudinal cohort study that includes individuals with knee pain in the southwest of Sweden. Enrolment took place from 2017 to 2019. The inclusion criteria were current knee pain, with no former known radiographic knee OA and no cruciate ligament rupture or rheumatological disorder. The participants were recruited: (1) when seeking care for knee pain in primary healthcare or (2) by advertisements in local newspapers. There are 306 individuals included in the study, mean age (SD) 51.7 (8.7) years and 69% are women. The baseline and follow-ups include clinical tests, radiographical examinations, blood samples, metabolic measures, pain pressure thresholds, tests of physical functions, daily physical activity types and patient-reported outcomes. Findings to date There were associations between metabolic factors and radiographic knee OA, even in those with normal body mass index at baseline. In addition, clinical hand OA was positively associated with fasting plasma glucose. We also found that modifiable factors as increased visceral fat and total body fat were associated with increased pain sensitivity among individuals with knee pain. Future plans By studying possible pathophysiological mechanisms of OA over time, we aim to provide new insights on OA progression, identify usable preventive measures helping the clinicians in the management of the disease and improve health for the patients. It is also important to study the development of chronic pain in OA, to get tools to identify individuals at risk and to be able to offer them treatment.
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| 46. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
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Metabolic factors associated to clinical hand osteoarthritis in individuals with knee pain
- 2020
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 79:Suppl. 1, s. 1734-1734
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Tidskriftsartikel (refereegranskat)abstract
- Background: There is some evidence supporting associations between metabolic factors, clinical hand osteoarthritis (OA) and radiographic knee OA. However, more studies are needed regarding early knee OA.Objectives: The aim was to study associations between metabolic factors and clinical hand OA at baseline in a cohort of individuals with knee pain, with and without radiographic knee OA.Methods: In an ongoing five-year longitudinal study of knee pain, hand OA was assessed by clinical examinations in 296 of the included individuals at baseline [1]. BMI, waist circumference (WC) and blood pressure was measured. Body composition was assessed with Inbody 770. Fasting plasma glucose, triglycerides, cholesterol, HDL-and LDL-cholesterol and HbA1c was analysed. Metabolic syndrome (MetS)was present if central obesity (WC ≥94 cm in men and ≥80cm in women) plus any two of the following factors: raised blood pressure (systolic blood pressure ≥ 130 or diastolic blood pressure ≥ 85 mm Hg or treatment of hypertension), raised triglycerides (≥ 1.7 mmol/L or specific treatment), reduced HDL-cholesterol (men < 1.03 mmol/L and women < 1.29 mmol/L or specific treatment), raised glucose (glucose ≥ 5.6 mmol/L, or type 2 diabetes). Hand strength and self-reported disability of the arm, shoulder and hand (quickDASH) was assessed.The individuals were divided according to having clinical hand OA or not, according to Altman [1]. The associations between background factors and clinical hand OA were calculated by crude logistic regression analyses, adjusting for age and sex.Results: Fifty-five percent of the individuals in the study was overweight or obese, 40% had MetS and 23% had radiographic knee OA. In total 34% of the individuals had clinical hand OA. The group with hand OA were older, had higher proportion of body fat, fasting plasma glucose, HbA1C, worse quickDASH score and lower hand strength, table 1. Clinical hand OA was significantly associated to higher age (OR 1.04, 95%CI 1.01-1.07), higher fasting plasma glucose (1.56, 1.05-2.30), worse quickDASH (1.04, 1.02-1.06) and lower hand strength (0.99, 0.99 -0.998), but not to proportion of body fat and HbA1c.Conclusion: In this cross-sectional study, the only metabolic factor associated with clinical hand OA was fasting plasma glucose. Contrary to other studies, there were no gender differences found. The association between development of clinical hand OA and metabolic factors in individuals with knee pain need to be further assessed in longitudinal studies.
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| 47. |
- Andersson, Maria L.E. 1968-, et al.
(författare)
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Metabolic Factors Associated to Radiographic Knee Osteoarthritis in Individuals with Knee Pain
- 2020
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Ingår i: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 79:Suppl. 1, s. 793-793
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Tidskriftsartikel (refereegranskat)abstract
- Metabolic factors have been shown to be associated to radiographic knee osteoarthritis (OA) [1]. More knowledge about associations between metabolic factors and early clinical knee OA is needed.Objectives:The aim was to study associations between metabolic factors and radiographic knee OA in individuals with knee painMethods:In total 272 individuals with radiographs at baseline, from an ongoing longitudinal study of knee pain (without cruciate ligament injury), were included in the present cross-sectional study. At baseline BMI, waist circumference (WC) and visceral fat area (VFA) were assessed. Fasting plasma glucose, triglycerides, cholesterol, HDL-and LDL-cholesterol were analysed. Metabolic syndrome (MetS) was present if central obesity (WC ≥94 cm in men and ≥80cm in women) plus any two of the following factors: raised blood pressure (systolic blood pressure ≥ 130 or diastolic blood pressure ≥ 85 mm Hg or treatment of hypertension), raised triglycerides (≥ 1.7 mmol/L or specific treatment), reduced HDL-cholesterol (men < 1.03 mmol/L and women < 1.29 mmol/L or specific treatment), raised glucose (glucose ≥ 5.6 mmol/L, or type 2 diabetes).The individuals were divided in two groups according to Ahlbäck [2], one group, who had grade I or more in at least one knee (radiographic knee OA, ROA) n=62 and the other group, not fulfilling Ahlbäck criteria (no radiograhic knee OA, No OA) n=211. The associations between metabolic factors and knee OA were calculated by crude logistic regression analyses, adjusting for age and sex.Results:The group with radiographic knee OA were older, had higher BMI, higher amount of visceral fat and more had central obesity, table 1. Ninety- four percent of the group with ROA had central obesity compared to 76%, p=0.002 in the no OA group. There was no difference between the groups regarding MetS, 44% in the ROA group vs. 39%, p=0.5. The group with ROA had increased cholesterol, triglycerides and LDL-cholesterol. There were no differences in fasting glucose between the groups, though both groups had a mean glucose value in the upper range of normal value, table 1. Factors associated to having radiographic knee OA were age (OR 1.11, 95% CI 1.06-1.17), BMI (1.07, 1.003-1.13), central obesity (3.91, 1.32-11.61) and raised triglycerides (2.35, 1.03-5.38).Table 1.Baseline descriptivesNo OAMean (sd)ROAMean(sd)p-valueN21162Age50 (9)56 (4)<0.001Sex, women, %66710.454BMI25.9 (4.7)27.7 (4.7)0.007VFA (cm2)109 (53)126 (52)0.026WC, cm94 (13)99 (13)0.006Raised Blood pressure, %66530.063Cholesterol (mmol/L)5.2 (1.0)5.5 (1.1)0.033Triglycerides (mmol/L)1.0 (0.6)1.2 (0.7)0.035Raised triglycerides, %9210.008LDL-cholesterol (mmol/L)3.4 (1.0)3.7 (1.1)0.027HDL-cholesterol (mmol/L)1.7 (0.4)1.7 (0.5)0.547Reduced HDL11150.460Glucose (mmol/L)5.5 (0.9)5.5 (0.5)0.858Conclusion:There were associations between some metabolic factors and radiographic knee OA in individuals with knee pain. Fasting glucose was increased in both groups. The associations between metabolic risk factors and the development of knee OA needs to be assessed in longitudinal studies.References:[1]Sellam J, Bone Spine 2013;80:568-73.[2]Ahlback S,. Acta Radiol Diagn (Stockh) 1968Suppl 277:7-72.Disclosure of Interests:None declared
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| 48. |
- Andersson, M. L.E., et al.
(författare)
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Pain in rheumatoid arthritis: a seven-year follow-up study of pain distribution and factors associated with transition from and to chronic widespread pain
- 2022
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Ingår i: Scandinavian Journal of Rheumatology. - : Informa UK Limited. - 0300-9742 .- 1502-7732. ; :51, s. 345-354
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To study transitions from and to chronic widespread pain (CWP) over 7 years in patients with rheumatoid arthritis (RA). Method: Two postal questionnaires were sent to patients included in the BARFOT (Better Anti-Rheumatic Pharmacotherapy) study, the first in 2010 and the second in 2017. The questionnaires assessed pain, number of tender and swollen joints, functional disability, health-related quality of life (HRQoL), pharmacological treatment, lifestyle factors, and patient-reported body mass index (BMI). The responders to both questionnaires were divided into three groups according to the reported pain duration and distribution: patients having no chronic pain (NCP), chronic regional pain (CRP), and CWP. Results: In all, 953 patients answered the questionnaires at both time-points. One-third (324) of the patients reported CWP in 2010, and 140 (43%) of the patients had transition to NCP or CRP in 2017. In multivariate logistic regression models, adjusting for age, gender, and disease duration, transition from CWP was associated with normal BMI, fewer tender joints, less pain, less fatigue, fewer pain regions, less disability, better HRQoL, and biologic treatment. In 2010, 628 patients reported NCP or CRP, whereas 114 of them reported CWP in 2017. Transition to CWP was associated with female gender, obesity, more tender and swollen joints, higher pain-related variables, worse disability, and worse HRQoL. Conclusion: There are modifiable factors associated with transitions from and to CWP that could be identified. Paying attention to these factors could improve pain treatment in the management of RA.
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| 49. |
- Andersson, Maria LE, et al.
(författare)
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The Effect of Stopping Smoking on Disease Activity in Rheumatoid Arthritis (RA). Data from BARFOT, a Multicenter Study of Early RA
- 2012
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Ingår i: Open Rheumatology Journal. - : Bentham Science Publishers Ltd.. - 1874-3129. ; 6, s. 303-309
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: We studied the effect of stopping smoking on disease activity in patients with RA.METHODS: Between 1992 and 2005, 2,800 adult patients were included in the BARFOT early RA study in Sweden. Disease Activity Score 28 joints (DAS28), C-reactive protein (CRP), Health Assessment Questionnaire (HAQ), rheumatoid factor (RF), anti-CCP, general health and pain visual analog scales (VAS), EULAR response and treatment were registered at inclusion and at follow-up 2, 5 and 8 years. In 2010, a self-completion postal questionnaire was sent to 2,102 patients, enquiring about lifestyle factors, including cessation of smoking.RESULTS: A total of 1,460 adult RA patients with disease duration ≤2 years were included in this study. Seventeen percent smoked in 2010. In total, 127 patients stopped smoking after inclusion in the study. Smoking cessation after inclusion in the study was negatively associated with EULAR good outcome at 8 years (OR 0.44, 95% CI 0.22-0.86, p=0.02), controlled for age, disease duration, sex, socioeconomic class, smoking status, RF, and DAS28 at inclusion.CONCLUSION: Seventeen percent of the RA patients smoked in 2010 in this large Swedish RA cohort. Stopping smoking after onset of RA did not change the poor prognosis of smokers with RA, but all RA patients need to stop smoking because of the high risk of cardiovascular mortality and morbidity and the association of smoking with vasculitis and noduli in RA.
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| 50. |
- Andersson, Maria, et al.
(författare)
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The effect of snuff (smokeless tobacco) on disease activity and function in rheumatoid arthritis : experiences from the Better Anti-Rheumatic FarmacOTherapy, a longitudinal multicenter study on early rheumatoid arthritis.
- 2013
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Ingår i: Journal of clinical rheumatology. - Philadelphia, PA : Lippincott Williams & Wilkins. - 1076-1608 .- 1536-7355. ; 19:1, s. 14-18
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: It is not known whether snuff (moist smokeless tobacco) affects disease activity in rheumatoid arthritis (RA).OBJECTIVE: This study aims to study the effect of snuff on disease activity and function in Swedish patients with early RA.METHODS: Between 1992 and 2005, 2800 adult patients were included in the Better Anti-Rheumatic FarmacOTherapy (BARFOT) early RA study in Sweden. Disease Activity Score 28 joints (DAS28), Health Assessment Questionnaire, visual analog scale for general health, and drug treatment were registered at inclusion and at follow-up after 1, 2, and 5 years. European League Against Rheumatism response and remission criteria were applied at 1 year. In 2010, a self-completed postal questionnaire was sent to 2102 patients in the BARFOT study enquiring about lifestyle factors such as smoking and use of snuff. Three controls for each patient using snuff were identified.RESULTS: Fifty-one patients who used snuff were identified, together with 145 controls. When we adjusted for socioeconomic class, disease duration, and previous antirheumatic medication, the snuff users had lower DAS28 values at up to 6 months of follow-up than patients who had never smoked, and they had lower DAS28 values than previous smokers at up to 2 years of follow-up. No effect of snuff use on European League Against Rheumatism response was seen at up to 1 year.CONCLUSIONS: Snuff users initially had lower DAS28 levels than never smokers and previous smokers. Copyright © 2013 by Lippincott Williams & Wilkins.
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