Psychometric Properties of Frailty Syndrome Checklist 5-Items in Frail Older Adults in Iran

Background: Frailty syndrome involves a complex combination of the natural process of getting old with different medical problems. Different indexes have been designed for each physical, mental, and social dimensions of frailty. Fried’s five-item index of frailty syndrome checklist is one of the most applicable scales to screen frailty. This study aimed to determine a psychometric index of frailty and the cut-off points for the Iranian elderly population. Methods: In a cross-sectional and psychpmetric study, 249 frail elderly people were selected among members of two Iranian Army Retirees Clubs in 2019. This was a cross-sectional-psychometric study which aimed at determining the psychometric index and cut-off points of a brief checklist of 5-item FSC among Iranian adults older than 60 years old and comparing this to prior results in different countries. Results: The data were analyzed by ANOVA, multi-variable regression, confirmatory, and exploratory factor analysis, and ROC analysis via SPSS 25 and AMOS 24. The validity of the study findings was determined by internal validity, high correlation of 5 questions, confirmatory and exploratory factor analysis of 3 subdomains with a clarity value of 0.87, and high goodness of fit index (GFI). Conclusion: The determined cut-off points were compatible with those of Fried’s prior study. The designed tools used in this study evaluated frailty syndrome of the Iranian elderly in elderly rehabilitation studies with high confidence. The application of the tool would provide caregivers and policymakers with additional information as to caring for this population.