Baseline characteristics in relation to any fracture before breast cancer (BC) diagnosis in aromatase inhibitor (AI) users.

NOTE: Pharmacy data through December 31, 2013.1 Logistic regression adjusted for age, race/ethnicity, menopausal status, and year of breast cancer diagnosis.2 Median (physical activity) = 20.9 metabolic equivalent (MET)-hours/week; median (alcohol intake) = 3.1 g/day.Baseline characteristics in relation to any fracture before breast cancer (BC) diagnosis in aromatase inhibitor (AI) users.