Development of Prognostic Prediction Model to Estimate Mortality for Frail Oldest Old: Prospective Cohort Study.

ABSTRACT:

Background

This study was performed to derive and validate a prognostic prediction model for individualized estimation of mortality risk among the frail oldest old (aged 80 years or older).

Methods

This analysis was based on the prospective open cohort study from the Chinese Longevity and Health Longitudinal Survey. A total of 14 118 frail oldest old were included from the 2002 wave to 2014 waves; the study outcome was all-cause mortality. Available predictors included frailty, demographics, and social factors. Cox models were used to estimate the coefficients of the predictors and least absolute shrinkage and selection operator was used for selecting predictors. Model performance was measured by discrimination and calibration with internal validation by bootstrapping. We al

SUBMITTER: Gu Y 

PROVIDER: S-EPMC10061936 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature