Adaptation and validation of the Charlson Index for Read/OXMIS coded databases.

ABSTRACT:

Background

The Charlson comorbidity index is widely used in ICD-9 administrative data, however, there is no translation for Read/OXMIS coded data despite increasing use of the General Practice Research Database (GPRD). Our main objective was to translate the Charlson index for use with Read/OXMIS coded data such as the GPRD and test its association with mortality. We also aimed to provide a version of the comorbidity index for other researchers using similar datasets.

Methods

Two clinicians translated the Charlson index into Read/OXMIS codes. We tested the association between comorbidity score and increased mortality in 146 441 patients from the GPRD using proportional hazards models.

Results

This Read/OXMIS translation of the Charlson index contains 3156 codes. Our v

SUBMITTER: Khan NF 

PROVIDER: S-EPMC2820468 | biostudies-literature | 2010 Jan

REPOSITORIES: biostudies-literature