Risk factors for breast cancer in postmenopausal Caucasian and Chinese-Canadian women

摘要

IntroductionStriking differences exist between countries in the incidence of breast cancer. The causes of these differences are unknown, but because incidence rates change in migrants, they are thought to be due to lifestyle rather than genetic differences. The goal of this cross-sectional study was to examine breast cancer risk factors in populations with different risks for breast cancer.