Stress and cancer: no statistical link!

This meta-analysis is about 116 000 participants...
I suspect that other factors are so strong like smoking, obesity, sedentarity, W6 PUFA imbalance in diet, carcinogens from high temp cooking... that stress is far from appearing in statistical analysis. It is an important finding because public health policies should focus on the actual factors of cancers and not on supposed factors favored by subjective evaluation of patients.
On the other hand stress could be protective against cancer as the hormesis hypothesis states. This is in keeping with an evolutionary perspective of cancer.








http://www.bmj.com/content/346/bmj.f165.pdf%2Bhtml