Longitudinal Measurements of FGF23, Sarcopenia, Frailty and Fracture in Older Community Dwelling Women.

Background: FGF23 has been associated with frailty and functional performance in older individuals, but the association to sarcopenia is unknown.

Objectives: To investigate the association between FGF23, frailty, sarcopenia and fractures in older community dwelling women.

Design: Prospective longitudinal cohort study.