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

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

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 …

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 Surgical outcomes are influenced by co-morbidity. The Royal College of
Surgeons (RCS) Co-morbidity Consensus Group was convened to improve existing …

Abstract The Charlson Comorbidity Index (CCI) is a highly cited and well established tool for
measuring comorbidity in clinical research, but there are problems with its use in practice …

Background: Adjustment for comorbidities is common in performance benchmarking and risk
prediction. Despite the exponential upsurge in the number of articles citing or comparing …

Background Comorbidity measures, such as the Charlson Comorbidity Index (CCI) and
Elixhauser Method (EM), are frequently used for risk-adjustment by healthcare researchers …

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 …