Development and validation of a structured query language implementation of the Elixhauser comorbidity index.
Comorbidity adjustment is often performed during outcomes and health care resource utilization research. Our goal was to develop an efficient algorithm in structured query language (SQL) to determine the Elixhauser comorbidity index.
Author(s): Epstein, Richard H, Dexter, Franklin
DOI: 10.1093/jamia/ocw181