Table 1 Baseline characteristics of patients

Demographic

 Age (years)

45.0(35.0–57.0)

43.0(35.0–57.0)

47.0(39.0–55.0)

0.645

 Gender (male%)

64.0(185/289)

67.0(140/209)

56.2(45/80)

0.089

 Body mass index (kg/m2)

25.7(23.4–28.4)

26.1(24.0–29.3)

24.1(22.7–26.0)

0.173

Comorbidity (%)

 Diabetes

30.4(88/289)

32.1(67/209)

26.2(21/80)

0.337

 Hypertension

30.8(89/289)

33.5(70/209)

23.8(19/80)

0.108

Etiology (%)

 Biliary

40.8(118/289)

41.6(87/209)

38.8(31/80)

0.656

 Hypertriglyceridemia

41.5(120/289)

41.6(87/209)

41.2(33/80)

0.954

 Alcoholic

7.6(22/289)

7.2(15/209)

8.8(7/80)

0.652

 others

10.0(29/289)

9.6(20/209)

11.2(9/80)

0.671

 Time from onset to CECT examination (day)

7.3(6.4–8.4)

7.0(6.1–8.1)

8.0(7.0–8.6)

 < 0.001*

Laboratory indicator

 Blood amylase (U/L)

524.0(222.5–1090.5)

518.5(228.2–1084.2)

599.0(115.0–1144.0)

0.584

 White blood cell (× 109/L)

11.6(8.7–15.4)

11.6(8.9–15.4)

11.6(7.8–15.2)

0.190

 Platelet (× 109/L)

174.0(131.0–211.0)

171.0(123.0–211.0)

185.5(139.8–218.2)

0.208

 C-reactive protein (mg/L)

247.0(155.0–310.2)

259.0(162.8–317.0)

207.4(152.0–285.0)

0.033*

 Procalcitonin (ng/mL)

2.0(0.8–4.9)

2.5(1.0–5.8)

0.9(0.5–2.0)

0.059

 Lactate (mmol/L)

1.9(1.4–2.8)

1.9(1.5–2.9)

1.9(1.3–2.7)

0.888

 Alanine aminotransferase (U/L)

21.0(14.0–42.0)

23.5(16.0–49.2)

17.5(13.0–28.5)

0.017*

 Pro-albumin (g/L)

123.5(85.0–166.5)

122.0(85.0–161.2)

132.0(89.5–179.8)

0.055

 Albumin (g/L)

32.0(29.0–35.0)

33.0(29.0–35.0)

32.0(29.5–35.5)

0.958

 Total bilirubin (μmol/L)

21.5(15.3–31.2)

23.1(16.6–32.2)

17.7(12.1–24.8)

0.037*

 Creatinine (μmol/L)

67.0(54.0–87.0)

71.0(55.8–96.2)

58.0(48.0–69.0)

0.004*

 Fibrinogen (g/L)

5.8(4.4–6.7)

5.8(4.4–6.8)

5.6(4.5–6.5)

0.834

 D-dimers (mg/L)

4.7(3.1–7.5)

4.9(3.3–8.5)

4.6(2.7–6.8)

0.090

Clinical scoring

 APACHEII score

8(6–11)

8(6–11)

8(5–9)

0.012*

 CTSI score

6(4–6)

6(4–8)

6(5–6)

0.154

 Pancreatic necrosis

72.3(209/289)

70.8(148/209)

76.2(61/80)

0.355

Outcomes

 Infected pancreatic necrosis (%)

12.5(36/289)

14.8(31/209)

6.2(5/80)

0.075

 Surgical intervention (%)

13.8(40/289)

16.3(34/209)

7.5(6/80)

0.053

 Persistent organ failure(%)

25.3(73/289)

31.6(66/209)

8.8(7/80)

 < 0.001*

 In-hospital mortality(%)

4.5(13/289)

5.7(12/209)

1.2(1/80)

0.183