Objectives: To validate and compare performance of an International Classification of
Diseases, tenth revision (ICD-10) version of a combined comorbidity index merging …

Objectives To conduct a systematic review of studies reporting on the development or
validation of comorbidity indices using administrative health data and compare their ability to …

Background The original Charlson Comorbidity Index (CCI) encompassed 19 categories of
medical conditions that were identifiable in medical records. Subsequent publications …

Abstract Background The Charlson comorbidity index is often used to control for
confounding in research based on medical databases. There are few studies of the accuracy …

Background The performance of the Charlson and Elixhauser comorbidity measures in
predicting patient outcomes have been well validated with ICD-9 data but not with ICD-10 …

Objective Hospital admission records provide snapshots of clinical histories for a subset of
the population admitted to hospital. In contrast, primary care records provide continuous …

With advances in the effectiveness of treatment and disease management, the contribution
of chronic comorbid diseases (comorbidities) found within the Charlson comorbidity index to …

Purpose Comorbidity indices are often used to measure comorbidities in register-based
research. We aimed to adapt the Charlson comorbidity index (CCI) to a Swedish setting …

The Charlson index is commonly used for risk adjustment in critical care health services
research. However, the literature supporting this methodology has not been thoroughly …

Abstract Background: The Charlson and Elixhauser comorbidity measures are commonly
used methods to account for patient comorbidities in hospital-level comparisons of clinical …