Predictive risk scales for development of pressure ulcers in pediatric patients admitted to general ward and intensive care unit

Table 7 Receiver operating characteristic curve analysis of abilities of Waterlow, Braden Q, and Glamorgan risk assessment scales to predict development of pressure ulcers in pediatric patients (first stage of the study, between May 2017 and August 2017)

Scale	AUC (95%CI)	Optimal cut-off	Sensitivity	Specificity	PPV	NPV
Intensive care unit
Waterlow	0.833 (0.653-1.000)	≤ 13	0.667	0.720	0.100	0.900
Braden Q	0.733 (0.508-0.959)	≤ 16	0.667	0.840	0.090	0.910
Glamorgan	0.800 (0.629-0.971)	≤ 27	0.667	0.720	0.100	0.900
General ward
Waterlow	0.870 (0.718-1.000)	≤ 14	0.600	0.990	0.010	0.990
Braden Q	0.924 (0.838-1.000)	≤ 14	0.600	0.980	0.010	0.990
Glamorgan	0.923 (0.839-1.000)	≤ 29	0.600	0.790	0.013	0.987

95%CI: 95% confidence interval; AUC: Area under the receiver operating characteristic curve; NPV: Negative predictive value; PPV: Positive predictive value.