Identifying Increased Risk of Readmission and In-hospital Mortality Using Hospital Administrative Data The AHRQ Elixhauser Comorbidity Index

摘要

Objective: We extend the literature on comorbidity measurement by developing 2 indices, based on the Elixhauser Comorbidity measures, designed to predict 2 frequently reported health outcomes: in-hospital mortality and 30-day readmission in administrative data. The Elixhauser measures are commonly used in research as an adjustment factor to control for severity of illness.