How to construct a frailty index from an existing dataset in 10 steps.

ABSTRACT:

Background

The frailty index is commonly used in research and clinical practice to quantify health. Using a health deficit accumulation model, a frailty index can be calculated retrospectively from data collected via survey, interview, performance test, laboratory report, clinical or administrative medical record, or any combination of these. Here, we offer a detailed 10-step approach to frailty index creation, with a worked example.

Methods

We identified 10 steps to guide the creation of a valid and reliable frailty index. We then used data from waves 5 to 12 of the Health and Retirement Study (HRS) to illustrate the steps.

Results

The 10 steps are as follows: (1) select every variable that measures a health problem; (2) exclude variables with more than 5% missing va

SUBMITTER: Theou O 

PROVIDER: S-EPMC10733590 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature