In another article in the British Medical Journal this week, the authors conclude that “work related stress, measured and defined as job strain, at baseline is unlikely to be an important risk factor for colorectal, lung, breast, or prostate cancers” (at least in a large database of Europeans).
The conclusion is based on a meta-analysis of prospective individual participant data from 12 European cohort studies that included 116,056 men and women aged between 17 and 70 years of age, all of whom were free from cancer at study baseline and were followed-up for a median of 12 years.
The full text of this article by Heikkilä et al. is available on line. With respect to prostate cancer specifically, the authors demonstrate, based on the available data, that the hazard ratio (HR) for any association between job strain and a diagnosis of prostate cancer is 0.86 and is not statistically significant.