Table 1.
Comparison of baseline data between the two groups
| Baseline data | Control group (n = 405) |
Study group (n = 75) |
X2 | P |
|---|---|---|---|---|
| Age (%) | 5.334 | 0.021 | ||
| < 60 | 128(31.6) | 34(45.3) | ||
| ≥ 60 | 277(68.4) | 41(54.7) | ||
| Sex (%) | 13.516 | <0.001 | ||
| Male | 254(62.7) | 30(40.0) | ||
| Female | 151(37.3) | 45(60.0) | ||
| History of pancreatitis (%) | 23.069 | <0.001 | ||
| No | 373(92.1) | 55(73.3) | ||
| Yes | 32(7.9) | 20(26.7) | ||
| History of diabetes (%) | 0.889 | 0.346 | ||
| No | 321(79.3) | 63(84.0) | ||
| Yes | 84(20.7) | 12(16.0) | ||
| History of hypertension (%) | 0.026 | 0.872 | ||
| No | 277(68.4) | 52(69.3) | ||
| Yes | 128(31.6) | 23(30.7) | ||
| History of ERCP (%) | 1.504 | 0.220 | ||
| No | 285(70.4) | 58(77.3) | ||
| Yes | 120(29.6) | 17(22.7) | ||
| Indication for ERCP (%) | ||||
| Choledocholithiasis | 203(50.1) | 46(61.3) | 3.185 | 0.074 |
| biliary stricture | 0(0) | 1(1.3) | - | 0.156 |
| pancreatitis | 39(9.6) | 12(16.0) | 2.704 | 0.100 |
| cholangeitis | 216(53.3) | 45(60.0) | 1.134 | 0.287 |
| Others | 110(27.2) | 17(22.7) | 0.657 | 0.418 |
| History of cholecystectomy (%) | 0.558 | 0.455 | ||
| No | 358(88.4) | 64(85.3) | ||
| Yes | 47(11.6) | 11(14.7) | ||
| History of choledocholithiasis (%) | 5.612 | 0.018 | ||
| No | 288(71.1) | 43(57.3) | ||
| Yes | 117(28.9) | 32(42.7) | ||
| Total bilirubin | 78.93 ± 95.77 | 65.85 ± 92.76 | 1.091 | 0.276 |
| Triglyceride | 1.52 ± 0.85 | 1.45 ± 0.68 | 0.751 | 0.453 |
Count data are expressed as n (%), and measurement data as mean ± SD. ERCP, Endoscopic retrograde cholangiopancreatography; study group, patients developed pancreatitis after ERCP; control group, patients did not develop pancreatitis after ERCP.