Postmenopausal Breast Cancer and Physical Function Change: A Difference‐in‐Differences Analysis

BACKGROUND/OBJECTIVES While breast cancer and associated therapies can influence physical function (PF), findings for breast cancer's effects on PF among postmenopausal women are not consistent. This research evaluates the effect of breast cancer on change in PF. DESIGN Longitudinal cohort study analyzed using difference‐in‐differences (DID) method to compare the changes in PF over time between women with and without breast cancer, by invasive...