Background Obesity is a risk factor for postmenopausal breast cancer, but the role of the
timing and amount of adult weight change in breast cancer risk is unclear. Methods We …

Context.—Breast cancer is a major cause of mortality among women. It is important to
identify modifiable risk factors for this disease. Objective.—To examine body mass index …

ContextEndogenous hormones are a primary cause of breast cancer. Adiposity affects
circulating hormones, particularly in postmenopausal women, and may be a modifiable risk …

OBJECTIVE: Body size is an important modifiable risk factor for breast cancer. Although
obesity has generally been found to be associated with increased risk for postmenopausal …

Importance The association between increasing body mass index (BMI; calculated as weight
in kilograms divided by height in meters squared) and risk of breast cancer is unique in …

Importance Obesity is associated with an increased risk of breast cancer, including the
estrogen receptor (ER)–positive subtype in postmenopausal women. Whether excess …

Body mass index is inversely associated with risk of premenopausal breast cancer, but the
underlying mechanisms for this association are poorly understood. Abdominal adiposity is …

Obesity and adult weight gain are well-established risk factors for postmenopausal breast
cancer. Although there are a few studies demonstrating the contribution of adult weight gain …

BACKGROUND Although the link between postmenopausal breast cancer and adiposity is
well established, the association between weight gain and specific histopathologic …

Excess adiposity and hormone replacement therapy (HRT) are important contributors to
postmenopausal breast cancer risk. HRT has been shown to modify the association …