Table 1. Baseline characteristics.
| Variable time to ERCP (n = 73) | P-value | ||
|---|---|---|---|
| ≤ 24 h (n = 39) | 24–72 h (n = 34) | ||
| Male | 21 (53.8) | 20 (58.8) | 0.669 |
| Age, years (range) | 55.0 (31–90) | 65.5 (26–85) | 0.089 |
| Symptom on admission* | 0.633 | ||
| Abdominal pain | 35 (89.7) | 28 (82.4) | |
| Nausea/vomiting | 3 (7.7) | 4 (11.8) | |
| Jaundice | 1 (2.6) | 2 (5.8) | |
| Total bilirubin, mg/dL | 4.1 ± 4.3 | 2.3 ± 1.9 | 0.031 |
| Direct bilirubin, mg/dL | 2.9 ± 3.7 | 2.1 ± 1.4 | 0.338 |
| ALP, IU/L | 167 ± 98 | 164 ± 135 | 0.918 |
| r-GT, IU/L | 404 ± 337 | 482 ± 469 | 0.468 |
| AST, IU/L | 218 ± 223 | 245 ± 235 | 0.622 |
| ALT, IU/L | 288 ± 261 | 209 ± 166 | 0.141 |
| Amylase, U/L | 1601 ± 1412 | 1434 ± 1056 | 0.579 |
| Lipase, U/L | 3778 ± 3956 | 3316 ± 3283 | 0.596 |
| WBC, /μL | 9144 ± 2792 | 10,318 ± 3768 | 0.132 |
| CRP, mg/L | 6.1 ± 5.9 | 24.5 ± 30.4 | 0.011 |
| Diagnosis of biliary pancreatitis | 0.124 | ||
| Elevated total bilirubin | 0 (0) | 2 (5.9) | |
| CBD stone | 16 (41) | 18 (52.9) | |
| GB stone | 6 (15.4) | 1 (2.9) | |
| Bile duct dilatation | 0 (0) | 1 (2.9) | |
| Combined | 17 (43.6) | 12 (35.3) | |
| Severity index of pancreatitis† | 0.527 | ||
| <2 | 29 (74.4) | 23 (67.6) | |
| ≥2 | 10 (25.6) | 11 (32.4) | |
Variables are expressed as mean ± SD or n (%).
ALP, alkaline phosphatase; r-GT, γ-glutamyltransferase; AST, aspartate aminotransferase; ALT, alanine aminotransferase; WBC, white blood cell; CRP, C-reactive protein; CBD, common bile duct; GB, gallbladder
*Some patients had more than one symptoms and signs
†BISAP, bedside index for severity in acute pancrieatitis