Performance of a Claims-Based Frailty Proxy Using Varying Frailty Ascertainment Lookback Windows.

ABSTRACT:

Background

Frailty is an aging-related syndrome of reduced physiological reserve to maintain homeostasis. The Faurot frailty index has been validated as a Medicare claims-based proxy for predicting frailty using billing information from a user-specified ascertainment window.

Objectives

We assessed the validity of the Faurot frailty index as a predictor of the frailty phenotype and 1-year mortality using varying frailty ascertainment windows.

Research design

We identified older adults (66+ y) in Round 5 (2015) of the National Health and Aging Trends Study with Medicare claims linkage. Gold standard frailty was assessed using the frailty phenotype. We calculated the Faurot frailty index using 3, 6, 8, and 12 months of claims prior to the survey or all-available lookback

SUBMITTER: Duchesneau ED 

PROVIDER: S-EPMC10997449 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature