Psychosocial stress is associated with benign breast disease in young Chinese women: results from Project ELEFANT

Psychosocial stress, including bereavement and work-related stress, is associated with the risk of breast cancer. However, it is unknown whether it may also be linked with increased risk of benign breast disease (BBD). Our study leveraged 61,907 women aged 17–55 years old from the Project ELEFANT study. BBD was diagnosed by clinician. Self-reported data on psychosocial stress over a 10-year period was retrospectively collected from...