Table 1 Patients’ demographics and clinical characteristics in the four groups of AP

 Male

220 (52.76)

182 (63.64) ^a

80 (42.55) ^b

261 (79.57) ^{a b c}

 Female

197 (47.24)

104 (36.36) ^a

108 (57.45) ^{a b}

67 (20.43) ^{a b c}

 Age (Years) (mean ± SD)

60.26 ± 16.08

48.65 ± 12.06 ^a

60.00 ± 16.67 ^b

42.29 ± 11.77 ^{a b c}

 TG (mmol/L) [median (range)]

0.82 (0.15–1.69)

4.69 (1.71–116.38) ^a

1.06 (0.28–1.68) ^{a b}

7.31 (1.72–85.60) ^{a c}

 WC (cm) (mean ± SD)

78.86 ± 6.29

81.83 ± 6.31 ^a

93.14 ± 5.98 ^{a b}

96.59 ± 6.70 ^{a b c}

 Biliary

274 (65.71)

54 (18.88) ^a

127 (67.55) ^b

59 (17.99) ^{a c}

 Hypertriglyceridemia

0 (0.00)

156 (54.55) ^a

0 (0.00) ^b

196 (59.76) ^{a c}

 Alcoholic

12 (2.88)

17 (5.94)

5 (2.66)

15 (4.57)

 ERCP

2 (0.48)

0 (0.00)

0 (0.00)

1 (0.30)

 Idiopathic

99 (23.74)

49 (17.13)

48 (25.53)

46 (14.02) ^{a c}

 Mixedness

1 (0.24)

4 (1.40)

1 (0.53)

6 (1.83)

 Others

29 (6.95)

6 (2.10) ^a

7 (3.72)

5 (1.52) ^a

 Recurrence≥2 (Times) (n, %)

35 (8.39)

33 (11.54)

10 (5.32)

54 (16.46) ^{a c}

 Diabetes mellitus (n, %)

44 (10.55)

68 (23.78) ^a

26 (13.83) ^b

84 (25.61) ^{a c}

 Alcoholism (n, %)

54 (12.95)

67 (23.43) ^a

21 (11.17) ^b

92 (28.05) ^{a c}

 Smoker (n, %)

51 (12.23)

54 (18.88)

16 (8.51) ^b

91 (27.74) ^{a c}

 Hospital stay (Day) (mean ± SD)

9.41 ± 4.61

9.21 ± 4.81

9.61 ± 4.76

9.66 ± 5.46