Fig. 2From: Derivation and validation of a prediction score for acute kidney injury secondary to acute myocardial infarction in Chinese patientsObseved versus predicted incidence of AKI In derivation and validation sets. a Derivation sets, the Hosmer-Lemeshowsatistic χ2 = 6.19, P = 0.63. b Validation sets, the Hosmer-Lemeshowsatistic χ2 = 3.64, P = 0.60Back to article page