A Modification of the Elixhauser Comorbidity Measures Into a Point System for Hospital Death Using Administrative Data

Comorbidity measures are necessary to describe patient populations and adjust for confounding. In direct comparisons, studies have found the Elixhauser comorbidity system to be statistically slightly superior to the Charlson comorbidity system at adjusting for comorbidity. However, the Elixhauser classification system requires 30 binary variables, making its use for reporting and analysis of comorbidity cumbersome.

Modify the Elixhauser classification system into a single numeric score for administrative data.