Injury severity grading in trauma patients: a simplified technique based upon ICD-9 coding.

Abstract

UNLABELLED The purpose of this study was to develop a simplified method of stratifying patient risk of death based on ICD-9 codes. METHODS Data were obtained from a statewide trauma registry. A mortality risk ratio (MRR) was derived from a "training" subset by calculating a mortality rate for each ICD-9 code of interest. The independent variables of… (More)

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