OBJECTIVE: First, to compare the distribution of complications and comorbidities associated
with 17 common surgical procedures. We then describe the effect of augmenting an ICD-9 …

The performance and predictive power of the Deyo-Charlson and the Romano-Charlson
comorbidity indices were compared when short-term mortality after hospitalization was the …

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

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 …

Our objectives were (1) to determine if studying hospital complication rates after coronary
artery bypass graft (CABG) surgery provides information not available when only mortality is …

Background. The comorbidity variables that constitute the Charlson index are widely used in
health care research using administrative data. However, little is known about the validity of …

To measure the burden of comorbid diseases using the MED-ECHO database (Quebec), the
so-called Charlson index was adapted to International Classification of Disease (ICD-9) …

BACKGROUND AND OBJECTIVES: To develop a comorbidity scoring system that out-
performs the Charlson index. METHODS: Population-based cohorts of medical (n …

Objectives. This study compares the performance of two comorbidity risk adjustment
methods (the Deyo et al adaptation of the Charlson index and the Elixhauser et al method) …

To develop a measure of the burden of comorbid disease from the MED-ECHO data base
(Québec), the so-called Charlson index was adapted to International Classification of …