Aapo Hiilamo1, Rahman Shiri2, Anne Kouvonen3, Minna Mänty4, Peter Butterworth5, Olli Pietiläinen6, Eero Lahelma6, Ossi Rahkonen6, Tea Lallukka7. 1. Finnish Institute of Occupational Health, Arinatie 3, 00370, Helsinki, Finland. Electronic address: Aapo.hiilamo@ttl.fi. 2. Finnish Institute of Occupational Health, Arinatie 3, 00370, Helsinki, Finland. 3. Faculty of Social Sciences, University of Helsinki, Helsinki, Finland; SWPS University of Social Sciences and Humanities in Wroclaw, Wroclaw, Poland; Administrative Data Research Centre - Northern Ireland (ADRC-NI), Queen's University Belfast, Belfast, UK. 4. Department of Public Health, University of Helsinki, Helsinki, Finland; Laurea University of Applied Sciences, Unit of Research, Development and Innovation, Vantaa, Finland. 5. Centre for Mental Health, Melbourne School of Population and Global Health, The University of Melbourne, Victoria, Australia; Melbourne Institute of Applied Economic and Social Research, The University of Melbourne, Victoria, Australia. 6. Department of Public Health, University of Helsinki, Helsinki, Finland. 7. Finnish Institute of Occupational Health, Arinatie 3, 00370, Helsinki, Finland; Department of Public Health, University of Helsinki, Helsinki, Finland.
Abstract
OBJECTIVE: We examined trajectories of work disability, indicated by sickness absence and disability retirement, among midlife public sector employees with and without common mental disorders (CMD) at baseline. We also examined adverse childhood events, occupational class, long-standing illness and health behaviour as determinants of the trajectories. METHODS: A sample from the Helsinki Health Study was extracted comprising 2350 employees. Baseline characteristics were obtained from mail surveys conducted in 2000-2 and 2007. CMD were measured by the General Health Questionnaire. Participants were followed between the ages of 50-59. Work disability trajectories were modelled by the annual number of work disability months in group-based trajectory analysis. Multinomial regression was used to predict trajectory group memberships. RESULTS: Three trajectories were identified: no work disability (consisting 59% of the all employees), stable/low (31%) and high/increasing disability (10%). Employees with CMD were more likely to belong to the stable/low (odds ratio 1.73 [95% confidence interval 1.37-2.18]), and the high/increasing (2.55 [1.81-3.59]) trajectories. Stratified models showed that the determinants of the trajectories were largely similar for those with CMD compared to those without CMD except that obesity was a somewhat stronger predictor of the high/increasing trajectory among employees with CMD. LIMITATIONS: The focus on midlife public sector employees limits the generalisability to other employment sectors and younger employees. CONCLUSIONS: CMD were strongly associated with a trajectory leading to early exit from employment and a stable/low work disability trajectory. These findings have implications for interventions promoting work ability of employees with mental ill-health.
OBJECTIVE: We examined trajectories of work disability, indicated by sickness absence and disability retirement, among midlife public sector employees with and without common mental disorders (CMD) at baseline. We also examined adverse childhood events, occupational class, long-standing illness and health behaviour as determinants of the trajectories. METHODS: A sample from the Helsinki Health Study was extracted comprising 2350 employees. Baseline characteristics were obtained from mail surveys conducted in 2000-2 and 2007. CMD were measured by the General Health Questionnaire. Participants were followed between the ages of 50-59. Work disability trajectories were modelled by the annual number of work disability months in group-based trajectory analysis. Multinomial regression was used to predict trajectory group memberships. RESULTS: Three trajectories were identified: no work disability (consisting 59% of the all employees), stable/low (31%) and high/increasing disability (10%). Employees with CMD were more likely to belong to the stable/low (odds ratio 1.73 [95% confidence interval 1.37-2.18]), and the high/increasing (2.55 [1.81-3.59]) trajectories. Stratified models showed that the determinants of the trajectories were largely similar for those with CMD compared to those without CMD except that obesity was a somewhat stronger predictor of the high/increasing trajectory among employees with CMD. LIMITATIONS: The focus on midlife public sector employees limits the generalisability to other employment sectors and younger employees. CONCLUSIONS:CMD were strongly associated with a trajectory leading to early exit from employment and a stable/low work disability trajectory. These findings have implications for interventions promoting work ability of employees with mental ill-health.
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