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 …

Increased body mass index (BMI) has been found to be associated with elevated risk of
postmenopausal breast cancer. Whether BMI is related to premenopausal breast cancer has …

Background There is sufficient evidence supporting a relationship between increased body
mass index (BMI) and an increased risk for breast cancer among postmenopausal women …

Objective: Large body size has been associated with decreased risk of breast cancer in
premenopausal women but with increased risk in postmenopausal women. Limited …

BACKGROUND Greater body mass index (BMI), a measure of overall adiposity, is
associated with a higher risk of postmenopausal breast cancer. The role of central adiposity …

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 …

Importance More than two-thirds of US women are overweight or obese, placing them at
increased risk for postmenopausal breast cancer. Objective To investigate in this secondary …

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 …

Objective: Epidemiologic evidence suggests a positive association between body mass,
adult height, and postmenopausal breast cancer. However, most studies have not been …