Effect of Family History, Body-Fat Distribution, and Reproductive Factors on the Risk of Postmenopausal Breast Cancer

Abstract
A family history of breast cancer reflects shared cultural factors, genetic predisposition, or both. There is evidence that the estimated risk associated with a family history of breast cancer increases multiplicatively in combination with other risk factors. We examined the combined effect of family history and anthropometric and reproductive factors on the risk of breast cancer in postmenopausal women.