The relationship between social deprivation and a frailty index of cumulative deficits in French middle-aged caregivers.

Background: The Institut Pasteur de Lille, in the north of France, has implemented a large, multidisciplinary health check, which aims to identify frailty in middle-aged caregivers. We aimed to construct an adapted frailty index of cumulative deficit (FI-CD) and study the associated factors, in particular socioeconomic factors.

Methods: The cross-sectional study included caregivers aged 45 to 65.