Table 4.

Multivariate logistic regression analysis of the selected variables in the training set.

Variable	Coefficients	SE	OR	95% CI	P
Smoking history	0.899	0.193	2.456	1.682–3.588	<0.001
Splenomegaly	0.495	0.196	1.641	1.118–2.409	0.011
Esophagogastric varices	0.736	0.154	2.087	1.542–2.825	<0.001
Surgical history	0.833	0.190	2.301	1.585–3.342	<0.001
RBC transfusion	0.638	0.201	1.892	1.277–2.804	0.001
DDi	0.067	0.018	1.069	1.032–1.108	<0.001

RBC transfusion, red blood cell transfusion; DDi, D-dimer.