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Table 3 Model performance: anatomic injury models augmented with age, gender, and injury mechanism

From: IMP-ICDX: an injury mortality prediction based on ICD-10-CM codes

Model description AUC (95% CI) H-L stat (95% CI) AIC
ISS 0.903 (0.899–0.908) 152 (106–202) 25,916
Single worst injury 0.915 (0.910–0.919) 37.4 (18.3–52) 21,970
IMP-ICDX 0.919 (0.914–0.923) 26.5 (11.2–41) 21,660
  1. Although every model will be changed by the addition of more predictors, IMP-ICDX still shows superior model compared to the SWI and ISS models