Validation of a Frailty Self Assessment Tool

Five thousands (5000) retirees aged 70 and over will be randomly selected from National Retirement Pension Institute (CNAV) retirees (2500 living in Paris and 2500 living in Toulouse). They will receive a letter from the CNAV explaining the study approach and a separate self-assessment frailty questionnaire to be filled in by the retirees at home and sent back in a pre-paid envelope to International Longevity Centre France (ILC-France). Retirees who have accepted the home assessment are examined by a healthcare professional, blinded to the results of self-administered questionnaire, using the Fried's frailty criteria in order to confirm or infirm the diagnosis of frailty. The General practitioner will be informed of the investigation results in order to set up a personalized prevention plan. ILC-France will anonymize both the self-administered questionnaires and the Fried assessments and send them to the Mixed Research Unit (UMR) 1027 in Toulouse. Comparison of the Fried assessment results with those of the self-questionnaire will confirm the metrological characteristics (false negative, false positive, sensitivity, specificity, predictive value) of the questionnaire. Secondary analyses will be conducted to compare the prevalence of frailty by age and gender. The statistical analysis is carried out by the UMR 1027 of Toulouse.