The influence of personality and perceived stress on the development of breast cancer: 20-year follow-up of 29,098 Japanese women.

ABSTRACT: Breast cancer is the most common cancer in women. However, it remains unproven whether psychological factors have an influence on breast cancer incidence. In our earlier study, subjects possessing two personality traits, decisiveness and "ikigai" (a Japanese word meaning something that makes one's life worth living), showed a significantly lower risk of developing breast cancer, although no psychological factors have been convincingly demonstrated to have an influence on breast cancer development in other studies. Therefore, we conducted this follow-up analysis to confirm the association between breast cancer incidence and psychological traits, using the final dataset of a large-scale prospective cohort study in Japan. We identified 209 cases of incident breast cancer out of a maximum 21-y

SUBMITTER: Sawada T 

PROVIDER: S-EPMC5009304 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature