Table 1.
Patient demographics, pancreatitis etiology and laboratory findings comparing mild and severe acute pancreatitis at day 0
| All (n = 490) | MAP (n = 420) | SAP (n = 70) | P value | |
| Age (yr) | 52.36 ± 16.98 | 52.34 ± 17.15 | 52.46 ± 16.01 | 0.958 |
| Sex: male (%) | 352 (71.8) | 297 (70.7) | 55 (78.6) | 0.176 |
| Etiology, n (%) | 0.839 | |||
| Gallstones | 136 (27.8) | 119 (28.3) | 17 (24.3) | |
| Alcohol | 250 (51.0) | 212 (50.5) | 38 (54.3) | |
| Hypertriglyceridemia | 8 (1.6) | 6 (1.4) | 2 (2.9) | |
| Idiopathic | 84 (17.1) | 73 (17.4) | 11 (15.7) | |
| Cancer | 12 (2.4) | 10 (2.4) | 2 (2.9) | |
| Laboratory (at admission) | ||||
| WBC (× 109/L) | 11.90 ± 5.61 | 11.80 ± 5.68 | 12.53 ± 5.14 | 0.315 |
| CRP (mg/dL) | 6.55 ± 8.10 | 5.90 ± 7.32 | 10.32 ± 11.03 | 0.001 |
| Hct (%) | 41.51 ± 5.78 | 41.61 ± 5.81 | 40.89 ± 5.52 | 0.330 |
| BUN (mg/dL) | 14.91 ± 9.51 | 14.76 ± 9.63 | 15.84 ± 8.76 | 0.382 |
| Calcium (mg/dL) | 8.50 ± 0.85 | 8.60 ± 0.78 | 7.90 ± 0.99 | 0.001 |
| Albumin (g/dL) | 3.90 ± 0.63 | 3.94 ± 0.62 | 3.71 ± 0.63 | 0.006 |
| Glucose (mg/dL) | 155.25 ± 98.25 | 153.45 ± 100.41 | 165.54 ± 84.76 | 0.343 |
| LDH (U) | 523.36 ± 480.75 | 518.47 ± 492.08 | 553.15 ± 406.77 | 0.585 |
| BMI (kg/m2) | 23.85 ± 4.12 | 23.93 ± 4.19 | 23.42 ± 3.72 | 0.368 |
| Hospital stay (d) | 9.81 ± 7.15 | 9.21 ± 6.34 | 13.36 ± 10.11 | 0.001 |
Data expressed as mean ± SD. MAP: Mild acute pancreatitis; SAP: Severe acute pancreatitis; WBC: White blood cell; CRP: C-reactive protein; Hct: Hematocrit; BUN: Blood urea nitrogen; LDH: Lactate dehydrogenase; BMI: Body mass index, P value < 0.05.