Self-reported psychological demands, skill discretion and decision authority at work: A twin study
2016 (English)In: Scandinavian Journal of Public Health, ISSN 1403-4948, E-ISSN 1651-1905, Vol. 44, no 4, 354-360 p.Article in journal (Refereed) Published
OBJECTIVES: To examine the contribution of genetic factors to self-reported psychological demands (PD), skill discretion (SD) and decision authority (DA) and the possible importance of such influence on the association between these work variables and depressive symptoms.
METHODS: 11,543 participants aged 27-54 in the Swedish Twin Registry participated in a web survey. First of all, in multiple regressions, phenotypic associations between each one of the three work environment variables and depressive symptoms were analysed. Secondly, by means of classical twin analysis, the genetic contribution to PD, SD and DA was assessed. After this, cross-twin cross-trait correlations were computed between PD, SD and DA, on the one hand, and depressive symptom score, on the other hand.
RESULTS: The genetic contribution to self-reported PD, DS and DA ranged from 18% for decision authority to 30% for skill discretion. Cross-twin cross-trait correlations were very weak (r values < .1) and non-significant for dizygotic twins, and we lacked power to analyse the genetic architecture of the phenotypic associations using bivariate twin modelling. However, substantial genetic contribution to these associations seems unlikely.
CONCLUSIONS: Genetic contributions to the self-reported work environment scores were 18-30%.
Place, publisher, year, edition, pages
2016. Vol. 44, no 4, 354-360 p.
Psychological demands, skill discretion, decision authority, twin analysis, heredity, alexithymia, cognitive ability
IdentifiersURN: urn:nbn:se:su:diva-128060DOI: 10.1177/1403494815626610ISI: 000375573800005PubMedID: 26825630Local ID: P-3324OAI: oai:DiVA.org:su-128060DiVA: diva2:912451