Comparison of scoring systems in predicting the severity of acute pancreatitis

Table 3 Incidence of severe acute pancreatitis stratified according to bedside index for severity in acute pancreatitis, Ranson, Acute Physiology and Chronic Health Evaluation-II, computed tomography severity index, and C-reactive protein with corresponding odds ratio n (%)

	Patients	Severe AP
Ranson
< 2	65 (40.4)	3 (4.6)
≥ 3	96 (59.6)	18 (18.8)
OR (95%CI)		4.8 (1.3-16.9)
BISAP
< 1	109 (67.7)	8 (7.3)
≥ 2	52 (22.3)	13 (25.0)
OR (95%CI)		4.2 (1.6-10.9)
APACHE-II
< 7	65 (40.4)	4 (6.2)
≥ 8	96 (59.6)	17 (17.7)
OR (95%CI)		8.2 (2.6-25.6)
CTSI
< 2	101 (62.7)	7 (6.9)
≥ 3	60 (37.3)	14 (23.3)
OR(95%CI)		4.1 (1.5-10.8)
CRP24
< 21.4	72 (85.7)	6 (8.3)
≥ 21.4	12 (14.3)	8 (66.7)
OR (95%CI)		22.0 (5.1-95.0)

AP: Acute pancreatitis; BISAP: Bedside Index for Severity in Acute Pancreatitis; APACHE-II: Acute Physiology and Chronic Health Evaluation-II; CTSI: Computed tomography severity index; CRP₂₄: C-reactive protein measured after 24 h.