Predictive utility of the Rockall scoring system in patients suffering from acute nonvariceal upper gastrointestinal hemorrhage

Table 6 Receiver operating characteristic analysis

	Sensitivities	Specificities	AUC	Youden index
Rockall score	0.914	0.816	0.933	0.730
Hemoglobin (g/L)	0.519	0.736	0.641	0.255
INR	0.494	0.874	0.668	0.368
Average ulcer size (cm)	0.864	0.552	0.752	0.416
Active bleeding (Yes/No)	0.654	0.575	0.615	0.229
Number of ulcers (≤ 2/>2)	0.63	0.563	0.596	0.193
Endoscopic therapy (Yes/No)	0.63	0.69	0.66	0.32
Blood transfusion (Yes/No)	0.654	0.552	0.603	0.206

INR: International normalized ratio; AUC: Area under the curve.