Table 5. Final stepwise logistic regression model for predicting severe RAP (RAC-based).

Variable	B	SE	Wald	df	P value	OR (95% CI) [Exp(B)]
APACHE II	0.135	0.050	7.207	1	0.007	1.145 (1.037–1.263)
EPIC	0.486	0.098	24.342	1	0.000	1.625 (1.340–1.971)
Constant	–5.535	0.569	94.789	1	0.000	0.004 (–)

APACHE II, Acute Physiology and Chronic Health Evaluation II; CI, confidence interval; EPIC, extrapancreatic inflammation on computed tomography; OR, odds ratio; RAC, 2012 revised Atlanta classification; RAP, recurrent acute pancreatitis; SE, standard error.