Can Obesity Worsen Breast Cancer Outcomes?

Apparently so.

CLINICAL CONTEXT
In the United States as well as globally, approximately two thirds of all breast cancer cases are hormone receptor–positive breast cancer. Obesity has been associated with an increased risk for breast cancer, and among women with operable breast cancer, obesity has been linked to worse outcomes.

Previous studies have not examined the association between body mass index (BMI) and outcomes by breast cancer subtype. The objective of this study by Sparano and colleagues was to evaluate the relationship of obesity and overweight to outcomes in otherwise healthy women with different subtypes of breast cancer.

STUDY SYNOPSIS AND PERSPECTIVE
There is now more evidence that obesity can worsen breast cancer outcome. The association occurs even when overweight women receive optimal treatment in a major clinical trial...

Kudos, fatsos.