Background: Identifying risk factors for breast cancer specific to women in their 40s could
inform screening decisions. Purpose: To determine what factors increase risk for breast cancer …

Previous studies suggest that increased physical activity may lower the risk of breast cancer
incidence, but less is known about whether levels of physical activity after breast cancer …

Background: Data for multiple common susceptibility alleles for breast cancer may be combined
to identify women at different levels of breast cancer risk. Such stratification could guide …

Background Population-based estimates of the risk of breast cancer associated with
germline pathogenic variants in cancer-predisposition genes are critically needed for risk …

Cadmium, a highly persistent heavy metal, has been categorized as a probable human
carcinogen by the US Environmental Protection Agency. Primary exposure sources include food …

To assess the joint relationships among body mass index, menopausal status, and breast
cancer according to breast cancer subtype and estrogen-progestin medication use, we …

Background National legislation is under consideration that would require women with
mammographically dense breasts to be informed of their breast density and encouraged to …

Background: Women are at higher risk of breast cancer if they have higher socioeconomic
status (SES) or live in higher SES or urban communities. We examined whether women living …

The authors investigated secular trends in age at menarche, age at menopause, and reproductive
life span within a population-based cohort of US women. Study subjects were 22,774 …

Background: Factors related to improving outcomes in breast cancer survivors are of
increasing public health significance. We examined postdiagnosis weight change in relation to …