Early Identification of High-Risk Factors for Upper Gastrointestinal Bleeding

Table 4

ROC analysis of clinic and laboratory for characteristics for high-risk UGIB patients.

Scoring system	Cutoff point	P	AC	Sensitivity	Specificity	PLR	NLR	Youden index
Hb (g/L)	85	< 0.001	0.820	0.744	0.772	3.395	0.293	0.546
Hb ≤ 85 (g/L)	0.5	< 0.001	0.772	0.772	0.771	3.371	0.296	0.543
Red hematemesis	0.5	< 0.001	0.794	0.651	0.936	10.172	0.373	0.587
Red stool	0.5	< 0.001	0.608	0.255	0.962	6.711	0.774	0.217
Liver cirrhosis	0.5	< 0.001	0.654	0.329	0.979	15.667	0.685	0.307
SCORE1	0.5	< 0.001	0.885	0.932	0.738	0.557	0.092	0.670
	1.5	< 0.001		0.491	0.969	15.839	0.525	0.460
SCORE2	0.5	< 0.001	0.830	0.817	0.757	3.362	0.242	0.574
	1.5	< 0.001		0.209	0.976	8.780	0.810	0.186
SCORE3	0.5	< 0.001	0.900	0.959	0.726	3,500	0.056	0.685
	1.5	< 0.001		0.589	0.948	11.327	0.433	0.537
	2.5	< 0.001		0.129	0.995	25.800	0,875	0.125
SCORE4	0.5	< 0.001	0.911	0.961	0.715	3.372	0.055	0.676
	1.5	< 0.001		0.659	0.941	11.169	0.362	0.600
	2.5	< 0.001		0.326	0.993	46.571	0.679	0.319
	3.5	< 0.001		0.060	1.000	—	0.940	0.060
Blatchford score		< 0.001
		< 0.001
		< 0.001

Hb = hemoglobin; UGIB = upper gastrointestinal bleeding; PLR = positive likelihood ratio; ROC = receiver-operating characteristic.