Fig. 1From: Derivation and validation of a prognostic model for postoperative risk stratification of critically ill patients with faecal peritonitisReceiver operating characteristics (ROC) curve obtained when applying the 6-month prognostic model to the derivation (a), geographic validation (b) and temporal validation sub-cohorts (c) respectively; AuROC area under the receiver operating characteristic curve, CI confidence intervalBack to article page