| 1. |
- Aili, Katarina, 1980-, et al.
(author)
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Long-term trajectories of chronic musculoskeletal pain: a 21-year prospective cohort latent class analysis
- 2021
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In: Pain. - Philadelphia, PA : Ovid Technologies (Wolters Kluwer Health). - 0304-3959 .- 1872-6623. ; 162:5, s. 1511-1520
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Journal article (peer-reviewed)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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| 2. |
- Aili, Katarina, 1980-, et al.
(author)
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Long term trajectories of chronic widespread pain : a 21-year prospective cohort latent class analysis
- 2019
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In: 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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Journal article (peer-reviewed)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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| 3. |
- Aili, Katarina, 1980-, et al.
(author)
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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
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In: Annals of the Rheumatic Diseases. - London, UK : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 78:Suppl 2, s. 2159-2159
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Journal article (peer-reviewed)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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| 4. |
- Aili, Katarina, et al.
(author)
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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
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In: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 77, s. 87-87
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Journal article (peer-reviewed)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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| 5. |
- Aili, Katarina, 1980-, et al.
(author)
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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
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In: Bmc Musculoskeletal Disorders. - London : Springer Science and Business Media LLC. - 1471-2474. ; 19
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Journal article (peer-reviewed)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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| 6. |
- Aili, Katarina, et al.
(author)
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Women’s experiences of coping with chronic widespread pain – a qualitative study
- 2018
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In: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 77, s. 1815-1815
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Journal article (peer-reviewed)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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| 7. |
- Andersson, M., et al.
(author)
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Empowerment and Associations to Disease Activity and Pain in Patients with Rheumatoid Arthritis
- 2021
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In: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 80:Supplement 1, s. 197-197
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Journal article (peer-reviewed)abstract
- The WHO describes empowerment as a process in which patients can take control and make informed decisions about their life and health. Empowerment is important for patients with rheumatoid arthritis (RA) since most of the care is provided by the patients themselves.Objectives:The aim was to study levels of empowerment and associated variables in individuals with RA and to investigate longitudinal clinical data in patients with low and high empowerment.Methods:This study involved patients with RA from the BARFOT (Better Anti-Rheumatic PharmacOTherapy) cohort, who were recruited between 1992 and 2006 and included in the study at the time for diagnosis (n = 2,837) [1]. The patients were assessed according to a structured protocol at inclusion and after 3, 6, 12, 24, 60, 96, and 180 months. At each follow-up DAS28-3, HAQ and pain were assessed. In 2017, a postal survey was sent to all still living patients (n=1542), with a response rate of 69% (n = 1,065). The questionnaire included disease characteristics, questions about lifestyle habits and the Swedish Rheumatic Disease Empowerment Scale (SWE-RES-23) [2]. The 844 patients who answered the SWE-RES-23 made up the study cohort. Differences in empowerment between groups (lowest third [LE], SWE-RES-23 ≤3.48 vs. highest third [HE], SWE-RES-23 ≥4.04) were analysed with t-tests. Logistic regression analysis was used to study associations with LE vs. all others. Thirdly, differences between LE and HE were studied with longitudinal data (seven time points) of pain, HAQ and disease activity.Results:Responders were mean 65 (SD13) years old, disease duration 15.6 (3.9) years, and 74% were women. The LE group (n=282) were older and were more often women, and reported worse overall health compared with the HE group (n=270), Table 1.Table 1.Descriptives at questionnaire 2017, including all participants and comparisons between highest and lowest third of SWE-RES-23AllMean (sd)Low SWERES*Mean (sd)High SWERES*Mean (sd)p-valueN844282270Sex, women, %7478690.015Age65 (13)66 (13)63 (12)0.002Disease duration, year15.6 (3.9)15.7 (4.1)15.6 (3.8)0.917TJC28 (0-28)5 (6)6 (8)4 (5)<0.001SJC28 (0-28)3 (5)3 (4)3 (4)0.334PatGA (0-10)3 (2)4 (3)2 (2)<0.001Pain (0-10)3 (2)4 (3)3 (2)<0.001Fatigue (0-10)4 (3)5 (3)3 (3)<0.001HAQ (0-3)0.62 (0.61)0.81 (0.69)0.42 (0.51)<0.001EQ5D (0-1)0.70 (0.25)0.62 (0.29)0.79 (0.19)<0.001SWERES3.8 (0.7)3.1 (0.3)4.6 (0.3)<0.001*tricotomized data, lowest third vs. highest thirdRegarding lifestyle habits, there were no differences between the groups in smoking habits, diets, or drinking habits. Moderate physical activity for ≥150 min/week was reported by 27% in the LE group vs. 41% in the HE group, p<0.001. Vigorous physical activity ≥60 min/week was reported by 22% vs. 37% in the LE and the HE group respectively, p<0.001.In the logistic regression analysis (n=844), several factors were associated with LE: being a woman (OR 1.40, 95% CI 1.00-1.97), pain-related factors as higher tender joint count (OR 1.04, 95% CI 1.01-1.06), worse patient global assessment (OR 1.19, 95% CI 1.12-1.27), pain (OR 1.14, 95% CI 1.08-1.21), fatigue (OR 1.14, 95% CI 1.09-1.21), HAQ (OR 2.08, 95% CI 1.64-2.64) and EQ-5D (OR 0.16, 95% CI 0.09-0.28). There were also associations between moderate physical activity (<150 min/week) (OR 1.60, 95% CI 1.16-2.19) and vigorous (< 60min/week) (OR 1.50, 95% CI 1.07-2.10) and LE.Analysing longitudinal data, the LE group reported worse pain and HAQ at all timepoints, a worse DAS28-3 at year 2 and 8, and a worse ESR at 15 years follow-up compared with the HE group (p<0.05).Conclusion:In patients with RA, low empowerment is associated with worse all over health. Interventions aimed to improve empowerment may include mastering of pain, physical function, and improved physical activity.References:[1]Hafstrom I et al. Open Access Rheumatol 2019;11:207-17.[2]Arvidsson S et al. Musculoskeletal Care 2012;10:101-9.Figure 1.Panel showing mean DAS28-3 (A), ESR (B), VAS pain (C) and HAQ (D) over 15 years in the different groups.Disclosure of Interests:None declared.
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| 8. |
- Andersson, Maria L.E. 1968-, et al.
(author)
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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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In: Bmc Musculoskeletal Disorders. - London : Springer Science and Business Media LLC. - 1471-2474. ; 23:1
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Journal article (peer-reviewed)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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| 9. |
- Andersson, Maria L.E., et al.
(author)
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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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In: Bmj Open. - London : BMJ. - 2044-6055. ; 12:7
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Journal article (peer-reviewed)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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| 10. |
- Andersson, Maria L.E. 1968-, et al.
(author)
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Metabolic factors associated to clinical hand osteoarthritis in individuals with knee pain
- 2020
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In: Annals of the Rheumatic Diseases. - London : BMJ Publishing Group Ltd. - 0003-4967 .- 1468-2060. ; 79:Suppl. 1, s. 1734-1734
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Journal article (peer-reviewed)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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