Development and validation of new poisoning mortality score system for patients with acute poisoning at the emergency department

Table 5 The performance of the new-PMS for predicting mortality

Statistics	Derivation group (n = 34,352)	Validation group (n = 8216)
Hosmer–Lemeshow goodness-of-fit test	p = 0.093	p = 0.768
AUROC (95% CI)	0.941 (0.934–0.949)	0.946 (0.929–0.964)
Optimal cutoff value	49 points	49 points
Sensitivity (95% CI)	0.864 (0.841–0.886), 785/909^a	0.859 (0.801–0.918), 116/135^a
Specificity (95% CI)	0.872 (0.868–0.876), 29,162/33,443^a	0.895 (0.888–0.902), 7233/8081^a
Accuracy (95% CI)	0.872 (0.868–0.875), 29,947/34,352^a	0.894 (0.888–0.901), 7349/8216^a

PMS poisoning mortality score, AUROC area under receiver operating characteristic curve, CI confidence interval
^aNumber of patients

ISSN: 1364-8535