Menstrual and Reproductive Factors and Risk of Breast Cancer in Iranian Female Population: A Systematic Review and Meta ‑Analysis

Conclusions: Our findings suggest that age at the first pregnancy and menopausal status were significantly associated with BC risk among Iranian women, whereas menarche age, nulliparity, and history of breastfeeding were not. In regard to the history of abortion, our findings revealed no association with BC, but in high ‑quality studies, this relationship was significant.
Source: International Journal of Preventive Medicine - Category: International Medicine & Public Health Source Type: research