Measuring Musculoskeletal Symptoms in Patients Receiving Aromatase Inhibitors

Specific Aims: 1) identify a core set of instruments for measuring musculoskeletal symptoms, 2) model the time course and predictors of change in musculoskeletal symptoms, 3) explore the effect of musculoskeletal symptoms on adherence to AIs in women during the first 6 months of AI treatment. Methods: We will prospectively assess musculoskeletal symptoms due to treatment with aromatase inhibitors. Post-menopausal women beginning AI treatment for hormone responsive breast cancer will be invited to join this study.