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1071.
  • Jederström, Moa, et al. (författare)
  • A cross-sectional study of anxiety and depression caseness in female competitive figure skaters in Sweden
  • 2023
  • Ingår i: BMJ Open sport & exercise medicine. - : BMJ. - 2055-7647. ; 9:1
  • Tidskriftsartikel (refereegranskat)abstract
    • ObjectivesLittle is known about figure skaters' mental health. This study aimed to describe anxiety and depression caseness (defined as a screening condition qualifying for psychiatric examination) in competitive figure skaters and analyse factors associated with such caseness.MethodsA cross-sectional study was performed in April 2019 among all competitive figure skaters in the south-eastern region of Sweden (N=400). The primary outcomes were anxiety caseness, measured using the short-form Spielberger State-Trait Anxiety Inventory and depression caseness, measured using the WHO-5 index. Multivariable logistic regression models were employed to determine the association between anxiety caseness and explanatory factors.ResultsIn total, 36% (n=142) of the invited skaters participated. Only females (n=137), mean age 12.9 (SD 3.0) years) were selected for analysis. Of the participating skaters, 47% displayed anxiety caseness and 10% depression caseness. Overweight body image perception (OR 5.9; 95% CI 2.0 to 17.6; p=0.001) and older age (OR 1.2; 95% CI 1.1 to 1.4; p=0.005) were associated with anxiety caseness. Skaters reporting no caseness were younger than those reporting only anxiety caseness (mean age difference -1.9 years; 95% CI -3.1 to -0.7; p=0.001) or anxiety and depression caseness (OR -3.5 years; 95% CI -5.6 to -1.5 years; p<0.001).ConclusionAnxiety caseness was associated with overweight body image perception and older age in female competitive figure skaters. Older skaters reported generally worse mental health. More research on the mental health of figure skaters is warranted, considering comorbidity and focusing on those needing further assessment and support.
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1072.
  • Jederström, Moa, et al. (författare)
  • Determinants of Sports Injury in Young Female Swedish Competitive Figure Skaters
  • 2021
  • Ingår i: Frontiers in Sports and Active Living. - : Frontiers Media SA. - 2624-9367. ; 3
  • Tidskriftsartikel (refereegranskat)abstract
    • Introduction: Although figure skating attracts several hundred thousand participants worldwide, there is little knowledge about physical health and sports injuries among young skaters. The present study aimed to describe the health status of a geographically defined Swedish population of licensed competitive figure skaters and to examine injury determinants. Methods: All licensed competitive skaters in the southeastern region of Sweden were in April 2019 invited to participate in a cross-sectional study using an online questionnaire. Multiple binary logistic regression was used for the examination of injury determinants. The primary outcome measure was the 1-year prevalence of a severe sports injury episode (time loss >21 days). The secondary outcome measure was the point prevalence of an ongoing injury. The determinants analyzed were age, skating level, relative energy deficiency indicators, and training habits. Results: In total, 142 (36%) skaters participated, 137 (96%) girls [mean (SD) age: 12.9 (SD 3.0) years]. Participating boys (n = 5) were excluded from further analysis. The 1-year prevalence of a severe sports injury episode was 31%. The most common injury locations for these injuries were the knee (25%), ankle (20%), and hip/groin (15%). In the multiple model, having sustained a severe injury episode was associated with older age (OR 1.2, 95% CI 1.1–1.4; p = 0.002) and an increased number of skipped meals per week (OR 1.1, 95% CI 1.0–1.3; p = 0.014). The point prevalence of an ongoing injury episode was 19%. The most common locations were the knee (24%), ankle (24%), and foot (24%). Having an ongoing injury episode was associated with older age (OR 1.4, 95% CI 1.2–1.7; p < 0.001) and an increased number of skipped meals per week (OR 1.1, 95% CI 1.0–1.3; p = 0.049). Conclusion: One-third of young female Swedish competitive figure skaters had sustained a severe injury episode during the past year, and a fifth reported an ongoing episode. Older age and an increased number of skipped meals per week were associated with a sports injury episode. Long-term monotonous physical loads with increasing intensity and insufficient energy intake appear to predispose for injury in young female figure skaters. Further examination of injury determinants among competitive figure skaters is highly warranted. Copyright © 2021 Jederström, Agnafors, Ekegren, Fagher, Gauffin, Korhonen, Park, Spreco and Timpka.
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1073.
  • Jensen, Georg Bach, et al. (författare)
  • Effect of human milk-based fortification in extremely preterm infants fed exclusively with breast milk: a randomised controlled trial
  • 2024
  • Ingår i: ECLINICALMEDICINE. - : Elsevier. - 2589-5370. ; 68
  • Tidskriftsartikel (refereegranskat)abstract
    • Background Mortality and severe morbidity remain high in extremely preterm infants. Human milk -based nutrient fortifiers may prevent serious complications and death. We aimed to investigate whether supplementation with human milk -based fortifier (HMBF), as compared to bovine milk -based fortifier (BMBF), reduced the incidence of the composite outcome of necrotising enterocolitis (NEC), sepsis, and mortality in extremely preterm infants exclusively fed human milk. Methods In this multicentre, randomised controlled trial at 24 neonatal units in Sweden, extremely preterm infants born between gestational week 22 + 0 and 27 + 6 fed exclusively human breast milk (mother's own and/or donor milk), were randomly assigned (1:1) to receive targeted fortification with either HMBF or BMBF. Randomisation was conducted before the enteral feeds reached 100 mL/kg/day, and was stratified by enrolment site, gestational age, singleton/twin, and sex. The allocation was concealed before inclusion, but after randomisation the study was not blinded for the clinical staff. For the NEC diagnosis, the study group was masked to an independent radiologist, and the final assessment of NEC and culture -proven sepsis was done by a blinded consensus panel review. The primary outcome was the composite of NEC stage II-III, culture -proven sepsis, and mortality from inclusion to discharge, no longer than postmenstrual week 44 + 0, in the intention -to -treat population (ClinicalTrials.gov, NCT03797157). Findings Between February 21st, 2019, and May 21st, 2021, 229 neonates were randomly assigned (115 HMBF, 114 BMBF). After exclusion of one infant due to parents' withdrawal of consent, 228 infants were included in the intention -to -treat analysis. Of the 115 infants assigned to HMBF, 41 (35.7%) fulfilled the criteria of either NEC, sepsis, or death, compared with 39 (34.5%) of 113 infants assigned to BMBF (OR 1.05, 95% CI 0.61-1.81, p = 0.86). Adverse events did not differ significantly between groups. Interpretation Supplementation with HMBF, as compared with BMBF, did not reduce the incidence of the composite outcome of NEC, sepsis, or death. Our results do not support routine supplementation with HMBF as a nutritional strategy to prevent NEC, sepsis, or death in extremely preterm infants exclusively fed human milk. Copyright (c) 2023 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
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1074.
  • Jensen, Per, 1956-, et al. (författare)
  • Feather pecking in chickens is genetically related to behavioural and developmental traits.
  • 2005
  • Ingår i: Physiology & behavior. - : Elsevier BV. - 0031-9384 .- 1873-507X. ; 86:1-2, s. 52-60
  • Tidskriftsartikel (refereegranskat)abstract
    • Feather pecking (FP) is a detrimental behaviour in chickens, which is performed by only some individuals in a flock. FP was studied in 54 red junglefowl (ancestor of domestic chickens), 36 White Leghorn laying hens, and 762 birds from an F(2)-intercross between these two lines. From all F(2)-birds, growth and feed consumption were measured. Age at sexual maturity and egg production in females, and corticosterone levels in males were also measured. From 333 F(2)-birds of both sexes, and 20 parental birds, body composition with respect to bone mineral content, muscle and fat was obtained by post-mortem examinations using Dual X-Ray Absorptiometry (DXA). In femurs of the same birds, the bone density and structure were analysed using DXA and Peripheral Quantitative Computerized Tomography (pQCT), and a biomechanical analysis of bone strength was performed. Furthermore, plumage condition was determined in all birds as a measure of being exposed to feather pecking. Using 105 DNA-markers in all F(2)-birds, a genome-wide scan for Quantitative Trait Loci (QTL), associated with the behaviour in the F(2)-generation was performed. FP was at least as frequent in the red junglefowl as in the White Leghorn strain studied here, and significantly more common among females both in the parental strains and in the F(2)-generation. In the F(2)-birds, FP was phenotypically linked to early sexual maturation, fast growth, weak bones, and, in males, also high fat accumulation, indicating that feather peckers have a different resource allocation pattern. Behaviourally, F(2) feather peckers were more active in an open field test, in a novel food/novel object test, and in a restraint test, indicating that feather pecking might be genetically linked to a proactive coping strategy. Only one suggestive QTL with a low explanatory value was found on chromosome 3, showing that many genes, each with a small effect, are probably involved in the causation of feather pecking. There were significant effects of sire and dam on the risk of being a victim of feather pecking, and victims grew faster pre- and post-hatching, had lower corticosterone levels and were less active in a restraint test. Hence, a wide array of behavioural and developmental traits were genetically linked to FP.
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1075.
  • Jeppson, Kjell, 1947, et al. (författare)
  • Theory of a room-temperature silicon quantum dot device as a sensitive electrometer
  • 2004
  • Ingår i: Journal of Applied Physics. - Melville, NY : American Institute of Physics (AIP). - 0021-8979 .- 1089-7550. ; 95:1, s. 323-326
  • Tidskriftsartikel (refereegranskat)abstract
    • We consider theoretically the use of a room-temperature silicon quantum dot based device for electrometer applications. The low power device includes two split gates that quantize the electronic energy levels in the emitter and collector regions. The base consists of a silicon quantum dot buried in silicon dioxide. The small size of the dotand quantization of the states in the leads combined to allow the device to operate at room temperature. The nonlinear current-voltage characteristics can be significantly altered by small changes to the potential of the split gates. Power dissipation in the device therefore changes with the split gate voltage, and this can be exploited in electrometerapplications. A simple model of the power dissipated when the device is part of a microwave resonant inductor-resistor-capacitor tank circuit suggests that large changes indevice power can be achieved by changing the gate voltage, thereby forming a measurable signal. We also demonstrate that the power dissipation in the device changes as the base width is varied, and that the current through the device increases exponentially with a decrease in base width. (©2004 American Institute of Physics)
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1076.
  • Jeppsson, Anna, et al. (författare)
  • CSF biomarkers distinguish idiopathic normal pressure hydrocephalus from its mimics
  • 2019
  • Ingår i: Journal of Neurology, Neurosurgery and Psychiatry. - : BMJ. - 0022-3050 .- 1468-330X. ; 90:10, s. 1117-1123
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To examine the differential diagnostic significance of cerebrospinal fluid (CSF) biomarkers reflecting Alzheimer's disease-related amyloid β (Aβ) production and aggregation, cortical neuronal damage, tau pathology, damage to long myelinated axons and astrocyte activation, which hypothetically separates patients with idiopathic normal pressure hydrocephalus (iNPH) from patients with other neurodegenerative disorders. Methods: The study included lumbar CSF samples from 82 patients with iNPH, 75 with vascular dementia, 70 with Parkinson's disease, 34 with multiple system atrophy, 34 with progressive supranuclear palsy, 15 with corticobasal degeneration, 50 with Alzheimer's disease, 19 with frontotemporal lobar degeneration and 54 healthy individuals (HIs). We analysed soluble amyloid precursor protein alpha (sAPPα) and beta (sAPPβ), Aβ species (Aβ38, Aβ40 and Aβ42), total tau (T-tau), phosphorylated tau, neurofilament light and monocyte chemoattractant protein 1 (MCP-1). Results: Patients with iNPH had lower concentrations of tau and APP-derived proteins in combination with elevated MCP-1 compared with HI and the non-iNPH disorders. T-tau, Aβ40 and MCP-1 together yielded an area under the curve of 0.86, differentiating iNPH from the other disorders. A prediction algorithm consisting of T-tau, Aβ40 and MCP-1 was designed as a diagnostic tool using CSF biomarkers. Conclusions: The combination of the CSF biomarkers T-tau, Aβ40 and MCP-1 separates iNPH from cognitive and movement disorders with good diagnostic sensitivity and specificity. This may have important implications for diagnosis and clinical research on disease mechanisms for iNPH. © Author(s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.
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1077.
  • Jerlock, Margaretha, 1946, et al. (författare)
  • Coping strategies, stress, physical activity and sleep in patients with unexplained chest pain.
  • 2006
  • Ingår i: BMC Nursing. - : BioMed Central. ; 5:7
  • Tidskriftsartikel (refereegranskat)abstract
    • ABSTRACT: BACKGROUND: The number of patients suffering from unexplained chest pain (UCP) is increasing. Intervention programmes are needed to reduce the chest pain and suffering experienced by these patients and effective preventive strategies are also required to reduce the incidence of these symptoms. The aim of this study was to describe general coping strategies in patients with UCP and examine the relationships between coping strategies, negative life events, sleep problems, physical activity, stress and chest pain intensity. METHOD: The sample consisted of 179 patients younger than 70 years of age, who were evaluated for chest pain at the emergency department daytime Monday through Friday and judged by a physician to have no organic cause for their chest pain. The study had a cross-sectional design. RESULTS: Emotive coping was related to chest pain intensity (r = 0.17, p = 0.02). Women used emotive coping to a greater extent than did men (p = 0.05). In the multivariate analysis was shown that physical activity decreased emotive coping (OR 0.13, p < 0.0001) while sex, age, sleep, mental strain at work and negative life events increased emotive coping. Twenty-seven percent of the patients had sleep problems 8 to14 nights per month or more. Permanent stress at work during the last year was reported by 18% of the patients and stress at home by 7%. Thirty-five percent of the patients were worried often or almost all the time about being rushed at work and 23% were worried about being unable to keep up with their workload. Concerning total life events, 20% reported that a close relative had had a serious illness and 27% had reasons to be worried about a close relative. CONCLUSION: Our results indicated that patients with more intense UCP more often apply emotive coping in dealing with their pain. Given that emotive coping was also found to be related to disturbed sleep, negative life events, mental strain at work and physical activity, it may be of value to help these patients to both verbalise their emotions and to become cognizant of the influence of such factors on their pain experience.
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1078.
  • Jerlock, Margaretha, 1946, et al. (författare)
  • Psychosocial profile in men and women with unexplained chest pain
  • 2008
  • Ingår i: J Intern Med. - : Wiley-Blackwell. ; 264:3, s. 265-274
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • OBJECTIVE: The aim of this study was to compare men and women with unexplained chest pain (UCP) to a randomly selected population sample free of clinical heart disease with regard to sleep problems, mental strain at work, stress at home, negative life events and health-related quality of life (HRQOL). DESIGN AND SUBJECTS: The study was conducted at a university hospital in Sweden including 231 patients aged 25-69 without any organic cause for chest pain. As a reference group, 1069 participants, were recruited from the INTERGENE population-based study. RESULTS: Patients with UCP had more sleep problems (OR = 1.8, P < 0.0001), were almost three times more worried about stress at work (OR = 2.9, P < 0.0001), or had more stress at home (OR = 2.8, P < 0.0001), and were twice as likely to have negative life events (OR = 2.1, P < 0.0001). Women, but not men, with UCP, had a higher prevalence of cardiovascular risk factors (obesity, smoking, diabetes and hypertension) compared with references. With regard to HRQOL, UCP patients scored significantly lower than references in all dimensions of the SF-36. CONCLUSIONS: In comparison with a healthy reference group, patients with UCP reported more sleep problems, mental strain at work, stress at home and negative life events and had lower health-related quality of life. Aside from immigration the strongest independent psychosocial factors were mental strain at work and negative life events last year in men and stress at home in women.
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1079.
  • Jerlström, Tomas, 1969-, et al. (författare)
  • No increased risk of short-term complications after radical cystectomy for muscle-invasive bladder cancer among patients treated with preoperative chemotherapy : a nation-wide register-based study
  • 2020
  • Ingår i: World journal of urology. - : Springer. - 0724-4983 .- 1433-8726. ; 38:2, s. 381-388
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: Preoperative chemotherapy is underused in conjunction with radical cystectomy (RC) for muscle-invasive bladder cancer (MIBC) due to concerns for complications and delay of surgery. Prospective data on short-term complications from population-based settings with frequent use of preoperative chemotherapy and standardised reporting of complications is lacking.METHODS: We identified 1,340 patients who underwent RC between 2011 and 2015 in Sweden due to MIBC according to the Swedish Cystectomy Register. These individuals were followed through linkages to several national registers. Propensity score adjusted logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for complications and death within 90 days of surgery, comparing patients receiving preoperative chemotherapy or not.RESULTS: Minimum two cycles of preoperative chemotherapy were given to 519 (39%) of the patients, who on average tended to be younger, have higher education, better physical status, and more advanced bladder cancer than patients not receiving chemotherapy. After adjusting for these and other parameters, there was no association between treatment with preoperative chemotherapy and short-term complications (OR 1.06 95% CI 0.82-1.39) or mortality (OR 0.75 95% CI 0.36-1.55). We observed a risk reduction for gastrointestinal complications among patients who received preoperative chemotherapy compared with those who did not (OR 0.49 95% CI 0.30-0.81).CONCLUSION: This nation-wide population-based observational study does not suggest that preoperative chemotherapy, in a setting with high utilisation of such treatment, is associated with an increased risk of short-term complications in MIBC patients treated with radical cystectomy.
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1080.
  • Jernberg, Tomas, et al. (författare)
  • The Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies (SWEDEHEART)
  • 2010
  • Ingår i: Heart. - : BMJ. - 1355-6037 .- 1468-201X. ; 96:20, s. 1617-1621
  • Tidskriftsartikel (refereegranskat)abstract
    • Aims The aims of the Swedish Web-system for Enhancement and Development of Evidence-based care in Heart disease Evaluated According to Recommended Therapies (SWEDEHEART) are to support the improvement of care and evidence-based development of therapy of coronary artery disease (CAD). Interventions To provide users with online interactive reports monitoring the processes of care and outcomes and allowing direct comparisons over time and with other hospitals. National, regional and county-based reports are publicly presented on a yearly basis. Setting Every hospital (n=74) in Sweden providing the relevant services participates. Launched in 2009 after merging four national registries on CAD. Population Consecutive acute coronary syndrome (ACS) patients, and patients undergoing coronary angiography/angioplasty or heart surgery. Includes approximately 80 000 new cases each year. Startpoints On admission in ACS patients, at coronary angiography in patients with stable CAD. Baseline data 106 variables for patients with ACS, another 75 variables regarding secondary prevention after 12-14 months, 150 variables for patients undergoing coronary angiography/angioplasty, 100 variables for patients undergoing heart surgery. Data capture Web-based registry with all data registered online directly by the caregiver. Data quality A monitor visits approximately 20 hospitals each year. In 2007, there was a 96% agreement. Endpoints and linkages to other data Merged with the National Cause of Death Register, including information about vital status of all Swedish citizens, the National Patient Registry, containing diagnoses at discharge for all hospital stays in Sweden and the National Registry of Drug prescriptions recording all drug prescriptions in Sweden. Access to data Available for research by application to the SWEDEHEART steering group.
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