Components of frailty, sarcopenia and their association with vitamin D deficiency. Cross-sectional, analytical study.

Introduction: In older adults, the association of frailty and sarcopenia with vitamin D deficiency is well known, but the association of the components of frailty syndrome has been poorly studied.

Objective: To determine the association of the components of frailty and sarcopenia with vitamin D insufficiency in older adults.

Methods: Adults were studied, in whom age, education, marital status, history of fractures, hospitalizations, anthropometric indicators, sarcopenia, Charlson index, polypharmacy, Fried's frailty phenotype, and plasma vitamin D were recorded; figures < 30 ng/mL were considered indicative of vitamin D insufficiency.