Fig. 2From: Risk prediction for 30-day mortality among patients with Clostridium difficile infections: a retrospective cohort studyRisk prediction model for 30-day mortality among adult inpatients with C. difficile infections. We included variables in a Cox proportional hazard model and evaluated the discrimination performance using Harrell’s c statistic. Abbreviations: BUN, blood urea nitrogen; CI, confidence interval; HR, hazard ratio; Ref, reference; SCr, serum creatinine; WBC, white blood cell countBack to article page