Table 4 Comparison of baseline clinical characteristics and outcomes between AP patients on severity classification

Male, N (%)

525 (56.2)

629 (57.9)

251 (54.8)

0.492

Median age, (IQR)

51 (41–64)

49 (39–62)

55 (44–66)

< 0.001

BMI

22.74 ± 3.38

23.55 ± 3.54

23.77 ± 3.56

< 0.001

 Biliary

569 (60.9)

603 (55.5)

276 (60.3)

0.034

 Alcoholism

67 (7.2)

104 (9.6)

43 (9.4)

0.130

 Hypertriglyceridemia

181 (19.4)

328 (30.2)

137 (29.9)

< 0.001

Smoker, N (%)

175 (18.7)

230 (21.2)

104 (22.7)

0.178

Alcoholism, N (%)

155 (16.6)

224 (20.6)

112 (24.5)

0.002

GLU, mmol/L

7.17 ± 3.05

8.59 ± 4.13

9.81 ± 5.22

< 0.001

BUN, mmol/L

5.02 ± 2.88

5.61 ± 3.09

9.71 ± 7.37

< 0.001

Creatinine, mmol/L

67.37 ± 51.77

69.07 ± 42.42

130.85 ± 128.10

< 0.001

PT, s

12.21 ± 7.60

12.62 ± 6.69

13.97 ± 7.60

< 0.001

APTT, s

29.61 ± 10.58

31.41 ± 14.81

36.13 ± 14.40

< 0.001

D-dimer, mg/L

2.69 ± 5.88

4.46 ± 5.29

7.21 ± 8.90

< 0.001

Median APACHEII, (IQR)

5 (3–8)

6 (4–9)

10 (8–13)

< 0.001

PN, N (%)

0

328 (30.2)

220 (48.0)

< 0.001

Infected PN, N (%)

0

38 (3.5)

100 (21.8)

< 0.001

Median hospital days (IQR)

6 (4–8)

9 (6–14)

14 (9–25)

< 0.001

Median ICU days, (IQR)

0 (0)

0 (0–4)

7 (4–15)

< 0.001

Admission to ICU, N (%)

74 (7.9)

259 (23.8)

349 (76.2)

< 0.001

Mortality, N (%)

0 (0)

3 (0.3)

45 (9.8)

< 0.001