EDUCATIONAL INEQUALITIES AND FRAILTY IN SPAIN: WHAT IS THE ROLE OF OBESITY?
Background: Evaluate how obesity is associated with the development of frailty among older adults isimportant. However, few studies have examined the relation between obesity and frailty within differenteducational backgrounds. Objectives:This study aims to investigate the association between educational leveland frailty and to evaluate whether obesity explains any possible associations among Spanish adults. Design,participants and settings:This is a cross-sectional study including 2,319 50-years-old and older community-dwelling Spanish adults, who participated in the first wave (2004/05) of the Survey of Health, Ageing andRetirement in Europe (SHARE). Measurements:Educational differences in frailty phenotypes –defined by theSHARE’s operationalized criterion– and their association with obesity –estimated through self-reports of weightand height– were evaluated using multinomial logistic regression analyses. Results:Women experienced frailtyin a larger proportion than men (22.3% vs. 13.3%). After adjusting for all confounders, we found a markededucational gradient in frailty, where individuals with non-formal education showed increased odds of a frailtyphenotype than individuals with higher education. Moreover, obesity was significantly related to frailty and theeffect of obesity is similar at all levels of education after testing for interaction effects. Although there is amediation effect of obesity, the educational gradient in frailty is robust to controls for obesity. Conclusions:Ourfindings suggest a somehow independent effect of both educational background and obesity on frailty amongSpanish individuals. This adds to the evidence of the frailty-obesity association among different educationalbackgrounds, and has implications for future interventions leading to reduce health disparities in elders.