A new systematic review of observational studies found no evidence that work-related stress is associated with type 2 diabetes.
Do people who experience high levels of work-related stress suffer a higher incidence of type 2 diabetes?
The reviewers looked for studies in the published literature up to March 2010. They included studies that reported the effects of high levels of work-related stress or long working hours.
When they combined the data from the nine studies they found, their meta-analysis:
did not show any statistically significant associations between any individual aspect of work-related psychosocial stress or job strain and risk of Type 2 diabetes
Users of this research should consider:
- Did the reviewers find all of the relevant evidence?
- Did they only include good quality, unbiased research?
- Could there have been a longer time delay between stress exposure and onset than was allowed for in the individual studies?
- Is this review enough to rule out a possible link?
Cosgrove MP, Sargeant LA, Caleyachetty R, Griffin SJ. Work-related stress and Type 2 diabetes: systematic review and meta-analysis. Occup Med (Lond). 2012 Feb 14. [Epub ahead of print]