Objective: The Charlson comorbidity index has been widely used for risk adjustment in
outcome studies using administrative health data. Recently, 3 International Statistical …

BACKGROUND AND OBJECTIVE: The ICD-9-CM adaptation of the Charlson comorbidity
score has been a valuable resource for health services researchers. With the transition into …

Background: The most used score to measure comorbidity is the Charlson index. Its
application to a health care administrative database including International Classification of …

Background: Comorbidities may have an important impact on survival, and comorbidity
scores are often implemented in studies assessing prognosis. The Charlson Comorbidity …

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

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 …

OBJECTIVE: The Charlson and Elixhauser indices are the most commonly used comorbidity
indices with risk prediction models using administrative data. Our objective was to compare …

Background: The Charlson Comorbidity Index, a popular tool for risk adjustment, often is
constructed from medical record abstracts or administrative data. Limitations in both sources …

We studied approaches to comorbidity risk adjustment by comparing two ICD-9-CM
adaptations (Deyo, Dartmouth-Manitoba) of the Charlson comorbidity index applied to …

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