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 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 …

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 …

Background: Obesity is associated with increased breast cancer risk among
postmenopausal women. We examined whether this association could be explained by the …

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 …

We examined the relationship between body mass [weight (kg)/height (m) 2] and breast
cancer using data from the Cancer and Steroid Hormone Study. The study compared 4323 …

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 …

Background Obesity and elevated breast density are common risk factors for breast cancer,
and their effects may vary by estrogen receptor (ER) subtype. However, their joint effects on …

BACKGROUND: Excessive body weight is known to increase the risk of postmenopausal,
but not premenopausal breast cancer. Some studies have suggested that being overweight …