| 1. |
- Blom, Victoria, 1975-, et al.
(författare)
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Genetic susceptibility to burnout in a Swedish twin cohort
- 2012
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Ingår i: European Journal of Epidemiology. - : Springer. - 0393-2990 .- 1573-7284. ; 27:3, s. 225-231
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Tidskriftsartikel (refereegranskat)abstract
- Most previous studies of burnout have focused on work environmental stressors, while familial factors so far mainly have been overlooked. The aim of the study was to estimate the relative importance of genetic influences on burnout (measured with Pines Burnout Measure) in a sample of monozygotic (MZ) and dizygotic (DZ) Swedish twins. The study sample consisted of 20,286 individuals, born 1959–1986 from the Swedish twin registry who participated in the cross-sectional study of twin adults: genes and environment. Probandwise concordance rates (the risk for one twin to be affected given that his/her twin partner is affected by burnout) and within pair correlations were calculated for MZ and DZ same—and opposite sexed twin pairs. Heritability coefficients i.e. the proportion of the total variance attributable to genetic factors were calculated using standard biometrical model fitting procedures. The results showed that genetic factors explained 33% of the individual differences in burnout symptoms in women and men. Environmental factors explained a substantial part of the variation as well and are thus important to address in rehabilitation and prevention efforts to combat burnout.
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| 2. |
- Blom, Victoria, et al.
(författare)
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The Importance of Genetic and Shared Environmental Factors for the Associations between Job Demands, Control, Support and Burnout.
- 2013
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Ingår i: PloS one. - : Public Library of Science (PLoS). - 1932-6203. ; 8:9, s. e75387-
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Tidskriftsartikel (refereegranskat)abstract
- Within occupational health research, one of the most influential models is the Job Demands-Control-Support model. Numerous studies have applied the model to different domains, with both physical and psychological health outcomes, such as burnout. The twin design provides a unique and powerful research methodology for examining the effects of environmental risk factors on burnout while taking familial factors (genetic and shared environment) into account. The aim of the present study was to investigate the impact of familial factors on the associations of burnout with job demands, control and support. A total of 14 516 individuals from the Swedish Twin Registry, who were born between 1959 and 1986, and who participated in the Study of Twin Adults: Genes and Environment (STAGE) by responding to a web-based questionnaire in 2005, were included in the analyses. Of these, there were 5108 individuals in complete same-sex twin pairs. Co-twin control analyses were performed using linear mixed modeling, comparing between-pairs effects and within-pair effects, stratified also by zygosity and sex. The results indicate that familial factors are of importance in the association between support and burnout in both women and men, but not between job demands and burnout. There are also tendencies towards familial factors being involved in the association between control and burnout in men. These results offer increased understanding of the mechanisms involved in the associations between work stress and burnout.
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| 3. |
- Bodin Danielsson, Christina, et al.
(författare)
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Office type in relation to health, well-being, and job satisfaction among employees : Erratum
- 2010
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Ingår i: Environment and Behavior. - : Sage Publications. - 0013-9165 .- 1552-390X. ; 42:6, s. 887-887
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Tidskriftsartikel (refereegranskat)abstract
- Reports an error in "Office type in relation to health, well-being, and job satisfaction among employees" by Christina Bodin Danielsson and Lennart Bodin (Environment and Behavior, 2008[Sep], Vol 40[5], 636-668). In the original article, a symbol was missing from Table 7 on p. 654. In that table, an open circle ("o") should have been present to show that the odds ratio indicated low risk for having poor quality of sleep among those who worked in the flex office. The corrected table is present in the erratum. (The following abstract of the original article appeared in record 2008-12036-003). This article investigates the hypothesis that office type has an influence on workers' health status and job satisfaction and 469 employees in seven different types, defined by their unique setup of architectural and functional features, have rated their health status and job satisfaction. Multivariate regression models were used for analysis of these outcomes, with adjustment for age, gender, job rank, and line of business. Both health status and job satisfaction differed between the seven office types. Lowest health status was found in medium-sized and small open plan offices. Best health was among employees in cell offices and flex offices. Workers in these types of offices and in shared room offices also rated the highest job satisfaction. Lowest job satisfaction was in combi offices, followed by medium-sized open plan offices. The differences between employees could possibly be ascribed to variations in architectural and functional features of the office types. (PsycINFO Database Record (c) 2016 APA, all rights reserved)
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| 4. |
- Bodin Danielsson, Christina, 1969-
(författare)
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The Office - An Explorative Study : Architectural Design's Impact on Health, Job Satisfaction & Well-being
- 2010
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This doctoral thesis examines the office environment’s influence on employees’ perception oftheir workplaces, their organizations and their job satisfaction, as well as their health and wellbeing.It is based on an empirical study of 491 office employees from twenty-six companies anddivisions in large companies. Seven office types, defined by their architectural and functionalfeatures, are represented in the study group: cell-office, shared-room office, small open planoffice, medium-sized open plan office, large open plan office, flex-office and combi-office. Theresearch has its basis in architecture, although an interdisciplinary approach using organizationaland management theory, environmental psychology, and social and stress medicine has beenemployed. Qualitative (Articles I & V) and quantitative methods(Articles II & IV) were used.The thesis also contains an explorative, review article. Thus it comprises all in all five articles.Article I is an analysis of the importance of architectural quality for employees´ perceptionand experience of the office using Lynch’s method (1960) developed to measure inhabitants’perception of architectural quality in cities. The study shows that in the office the experienceto a high degree is independent of both the scale of the office and office type; instead it isdetermined by the quality of the plan layout combined with the quality of other design features.It also shows Lynch’s method to be useful in foreseeing where the elements that reinforce‘imageability’ will most likely appear in an office environment.Article II investigates employees’ environmental satisfaction focusing on:1) ambient factors; 2) noise and privacy; and 3) design-related factors. The results, based onregression models with age, gender, job rank and line of business as additional covariates,show office type as a factor with a statistically significant impact on satisfaction with the officeenvironment. Employees in cell-offices are prominently most satisfied, followed by those inflex-offices, cell-offices rate low only on social aspects of design-related factors. A major findingis the internal differences between office types where employees share workspace and facilitieswith lowest satisfaction in medium-sized and large open plan offices.Article III is a review article that analyzes the employees’ office experiences in two ways:1) by framing the physical work environment’s influence on employees into the model oforganizational theorist Davis (1994); and 2) by categorizing the office experience into twogroups based on the nature of the experience and problems related to them. The results of theemperical study presented in Article II are the basis for the discussion in this article.Article IV examines employees’ health, well-being and job satisfaction. A multivariateanalysis applied to the study sample and equivalent to that of Article II shows significantly higherrisks for ill health and poor well-being in medium-sized and small open plan offices, comparedespecially with cell-office. In medium-sized open plan and combi-offices the employees evincethe lowest job satisfaction. The best chance for good health status and job satisfaction is in cellofficesand flex-offices.Article V examines the office architecture´s importance for employees’ perception of theirown workplaces and organizations based on the two key components of architecture—theaesthetical and functional dimensions. The results show that overall the employees had positiveexperiences of their office environments. These mainly concerned the aesthetical dimension,whereas the negative comments dealt with the functional dimension. The aesthetical dimensionappears not only to set the agenda for employees’ perception of the workplace and organizationas a whole, but also for the perception of the functional dimensions. The functional dimensionswere only in focus when the workstation and its proximate area were discussed.
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| 5. |
- Magnusson, Magnus, et al.
(författare)
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Predicting grey-sided vole occurrence in northern Sweden at multiple spatial scales
- 2013
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Ingår i: Ecology and Evolution. - Hoboken, USA : Wiley-Blackwell Publishing Inc.. - 2045-7758. ; 3:13, s. 4365-4376
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Tidskriftsartikel (refereegranskat)abstract
- Forestry is continually changing the habitats for many forest-dwelling species around the world. The grey-sided vole (Myodes rufocanus) has declined since the 1970s in forests of northern Sweden. Previous studies suggested that this might partly be caused by reduced focal forest patch size due to clear-cutting. Proximity and access to old pine forest and that microhabitats often contains stones have also been suggested previously but never been evaluated at multiple spatial scales. In a field study in 2010–2011 in northern Sweden, we investigated whether occurrence of grey-sided voles would be higher in (1) large focal patches of >60 years old forest, (2) in patches with high connectivity to sur- rounding patches, and (3) in patches in proximity to stone fields. We trapped animals in forest patches in two study areas (V€asterbotten and Norrbotten). At each trap station, we surveyed structural microhabitat characteristics. Land- scape-scale features were investigated using satellite-based forest data combined with geological maps. Unexpectedly, the vole was almost completely absent in Norrbotten. The trap sites in Norrbotten had a considerably lower amount of stone holes compared with sites with voles in V€asterbotten. We suggest this might help to explain the absence in Norrbotten. In V€asterbotten, the distance from forest patches with voles to stone fields was significantly shorter than from patches without voles. In addition, connectivity to surrounding patches and size of the focal forest patches was indeed related to the occurrence of grey-sided voles, with connectivity being the overall best predictor. Our results support previous findings on the importance of large forest patches, but also highlight the importance of connectivity for occurrence of grey-sided voles. The results further suggest that proximity to stone fields increase habitat quality of the forests for the vole and that the presence of stone fields enhances the voles’ ability to move between nearby forest patches through the matrix
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| 6. |
- Ahlsson, Anders, 1962-, et al.
(författare)
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Postoperative atrial fibrillation in patients undergoing aortocoronary bypass surgery carries an eightfold risk of future atrial fibrillation and a doubled cardiovascular mortality
- 2010
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Ingår i: European Journal of Cardio-Thoracic Surgery. - : Oxford University Press (OUP). - 1010-7940 .- 1873-734X. ; 37:6, s. 1353-1359
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: This article presents a study of postoperative atrial fibrillation (AF) and its long-term effects on mortality and heart rhythm.METHODS: The study cohort consisted of 571 patients with no history of AF who underwent primary aortocoronary bypass surgery from 1999 to 2000. Postoperative AF occurred in 165/571 patients (28.9%). After a median follow-up of 6 years, questionnaires were obtained from 91.6% of surviving patients and an electrocardiogram (ECG) from 88.6% of all patients. Data from hospitalisations due to arrhythmia or stroke during follow-up were analysed. The causes of death were obtained for deceased patients.RESULTS: In postoperative AF patients, 25.4% had atrial fibrillation at follow-up compared with 3.6% of patients with no AF at surgery (p<0.001). An episode of postoperative AF was the strongest independent risk factor for development of late AF, with an adjusted risk ratio of 8.31 (95% confidence interval (CI) 4.20-16.43). Mortality was 29.7% (49 deaths/165 patients) in the AF group and 14.8% (60 deaths/406 patients) in the non-AF group (p<0.001). Death due to cerebral ischaemia was more common in the postoperative AF group (4.2% vs 0.2%, p<0.001), as was death due to myocardial infarction (6.7% vs 3.0%, p=0.041). Postoperative AF was an age-independent risk factor for late mortality, with an adjusted hazard ratio of 1.57 (95% CI 1.05-2.34).CONCLUSIONS: Postoperative AF patients have an eightfold increased risk of developing AF in the future, and a doubled long-term cardiovascular mortality.
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| 7. |
- Alipour, Akbar, et al.
(författare)
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The transitional pattern of pain and disability, from perceived pain to sick leave : Experience from a longitudinal study
- 2013
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Ingår i: Journal of Back and Musculoskeletal Rehabilitation. - : IOS Press. - 1053-8127 .- 1878-6324. ; 26:4, s. 411-419
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Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate the prospective value of the transitional and dynamic patterns of pain disability over time on sick leave in chronic recurrent back/neck pain cases.Methods: The material used was based on a longitudinal study with three repeated measurements. The graded Chronic Pain Scale was used to assess levels of pain disability. The relationship between the transitional patterns of the pain disability score ( ten defined states of decrease, increase or no change, between two time points) and sick leave was analyzed for 909 chronic/recurrent cases in three different models using logistic regression. Results: Those with high level of pain disability have a more transitional pattern and their pain level changed during the time period studied. When adjusting for age, gender, education and previous sick leave, the final model indicated that the current level of pain disability was a risk factor in taking sick leave. The likelihood of sick leave was highest in the transition of pain into the highest levels of disability, independent of past disability level of pain. Earlier sick leave remained as an important predictor of sick leave.Conclusions: From a clinical and prognostic perspective the probability of sick leave will be different and can be predicted based on previous sick leave but not from former history of pain disability level or its transitional pattern.
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| 8. |
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| 9. |
- Arvidsson, Bo, 1962-, et al.
(författare)
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Reference data for bone mineral density in Swedish women using digital X-ray radiometry
- 2013
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Ingår i: Journal of clinical densitometry. - New York, USA : Elsevier. - 1094-6950 .- 1559-0747. ; 16:2, s. 183-188
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Tidskriftsartikel (refereegranskat)abstract
- During the last decade, digital X-ray radiometry (DXR) has been used to measure bone mineral density (BMD) in the metacarpal bones. The aim of this study was to establish Swedish reference material for bone mass in women, measured in the metacarpal bones with DXR, and compare these data with the data from the manufacturer. A sample of 1440 women aged 20-79yr living in Örebro County was randomly assigned from the population register. Microdose mammography was used (Sectra MDM L30; Sectra Imtec AB, Linköping, Sweden) to measure BMD. Cole's LMS method was used to calculate DXR. Six hundred sixty-nine (48.3%) women participated. Peak bone mass occurred at the age of 43.4yr with a BMD of 0.597g/cm(2) (standard deviation: 0.050). Our Swedish data correlated well with the manufacturer's material. Only among women aged 50-59yr did BMD differ, where the Swedish sample had lower values. The LMS method can be used to describe the DXR data and provide a more detailed picture of bone density distribution. DXR-BMD in Swedish women aged 20-79yr is equivalent to findings from other studies, showing the same distribution of BMD in most age groups except for ages 50-59yr.
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| 10. |
- Axén, Iben, et al.
(författare)
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Analyzing repeated data collected by mobile phones and frequent text messages : An example of Low back pain measured weekly for 18 weeks
- 2012
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Ingår i: BMC Medical Research Methodology. - : BioMed Central. - 1471-2288. ; 12
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Tidskriftsartikel (refereegranskat)abstract
- Background: Repeated data collection is desirable when monitoring fluctuating conditions. Mobile phones can be used to gather such data from large groups of respondents by sending and receiving frequently repeated short questions and answers as text messages.The analysis of repeated data involves some challenges. Vital issues to consider are the within-subject correlation, the between measurement occasion correlation and the presence of missing values.The overall aim of this commentary is to describe different methods of analyzing repeated data. It is meant to give an overview for the clinical researcher in order for complex outcome measures to be interpreted in a clinically meaningful way.Methods: A model data set was formed using data from two clinical studies, where patients with low back pain were followed with weekly text messages for 18 weeks. Different research questions and analytic approaches were illustrated and discussed, as well as the handling of missing data. In the applications the weekly outcome “number of days with pain” was analyzed in relation to the patients’ “previous duration of pain” (categorized as more or less than 30 days in the previous year).Research questions with appropriate analytical methods1: How many days with pain do patients experience? This question was answered with data summaries.2: What is the proportion of participants “recovered” at a specific time point? This question was answered using logistic regression analysis.3: What is the time to recovery? This question was answered using survival analysis, illustrated in Kaplan-Meier curves, Proportional Hazard regression analyses and spline regression analyses.4: How is the repeatedly measured data associated with baseline (predictor) variables? This question was answered using generalized Estimating Equations, Poisson regression and Mixed linear models analyses.5: Are there subgroups of patients with similar courses of pain within the studied population?A visual approach and hierarchical cluster analyses revealed different subgroups using subsets of the model data.Conclusions: We have illustrated several ways of analysing repeated measures with both traditional analytic approaches using standard statistical packages, as well as recently developed statistical methods that will utilize all the vital features inherent in the data.
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