Psychosocial Working Conditions and Subsequent Sickness Absence—Effects of Pain and Common Mental Disorders in a Population-Based Swedish Twin Sample

To investigate pain and/or common mental disorders (CMDs) in the associations between psychosocial working conditions and sickness absence (SA) while controlling familial confounding. METHODS: Prospective Prospective twin cohort study included survey data for pain and CMD, register data for SA and psychosocial working conditions. The follow-up from 2005 to 2016 of 28,916 twin individuals for first incident SA spell measured as the main International Classification of Diseases version 10 (ICD-10) diagnosis groups (F00-F99, I00-I99, and M00-M99), or the duration. We used regression models to obtain odds ratio (OR), incidence rate ratio (IRR), or relative risk ratio (RRR) with 95% confidence intervals (CI). RESULTS: The covariate adjusted models of 9156 SA spells indicated almost no statistically significant associations between psychosocial working conditions and SA. CONCLUSIONS: Psychosocial working conditions were not associated with SA while familial confounding could not be ruled out.