Author Interviews, JAMA, Lancet / 25.09.2014
Longer Working Hours Linked To Increased Risk of Diabetes in Lower Socioeconomic Jobs
MedicalResearch.com Interview with:
Prof Mika Kivimäki PhD
Department of Epidemiology and Public Health,
University College London, London, UK
Hjelt Institute, Medical Faculty, University of Helsinki, Helsinki, Finland
Medical Research: What are the main findings of the study?
Prof. Kivimäki: In our study, we pooled published and unpublished data from 222 120 men and women from the USA, Europe, Japan, and Australia. Of them, 4963 individuals developed type 2 diabetes during the mean follow-up of 7.6 years. This is the largest study to date on this topic.
In an analysis stratified by socioeconomic status, the association between long working hours and diabetes was evident in the low socioeconomic status group, but was null in the high socioeconomic status group. The association in the low socioeconomic status group did not change after taking into account age, sex, obesity, physical activity, and shift working. So, the association was very robust.
In brief, the main finding of our meta-analysis is that the link between longer working hours and type 2 diabetes was apparent only in individuals in the low socioeconomic status groups.
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