Coding algorithms for defining Charlson and Elixhauser co-morbidities in Read-coded databases.

ABSTRACT:

Background

Comorbidity measures, such as the Charlson Comorbidity Index (CCI) and Elixhauser Method (EM), are frequently used for risk-adjustment by healthcare researchers. This study sought to create CCI and EM lists of Read codes, which are standard terminology used in some large primary care databases. It also aimed to describe and compare the predictive properties of the CCI and EM amongst patients with hip fracture (and matched controls) in a large primary care administrative dataset.

Methods

Two researchers independently screened 111,929 individual Read codes to populate the 17 CCI and 31 EM comorbidity categories. Patients with hip fractures were identified (together with age- and sex-matched controls) from UK primary care practices participating in the Clinical Pract

SUBMITTER: Metcalfe D 

PROVIDER: S-EPMC6554904 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature