Table 1.
Characteristics of patients with choledocholithiasis combined with biliary tract infection undergoing ERCP with bile culture
| Characteristic | Total bile culture (n = 880) | Positive bile culture (n = 795) | Negative bile culture (n = 85) | P-value |
|---|---|---|---|---|
| Age, mean ± SD, years | 67.12 ± 13.80 | 67.95 ± 14.25 | 65.00 ± 13.30 | 0.041 |
| Sex, female, n (%) | 394 (44.77) | 359 (45.16) | 35 (45.18) | 0.483 |
| Gallbladder removed, n (%) | 139 (15.80) | 121 (15.22) | 18 (21.18) | 0.152 |
| Combined intrahepatic stones, n (%) | 27 (3.07) | 23 (2.89) | 4 (4.71) | 0.555 |
| Combined gallbladder stones, n (%) | 187 (21.25) | 162 (20.38) | 25 (29.41) | 0.053 |
| Purulent bile at ERCP, n (%) | 346 (39.32) | 325 (40.88) | 21 (24.71) | 0.004 |
| Preoperative antibiotics for more than 3 days, n (%) | 57 (6.48) | 49 (6.16) | 8 (9.41) | 0.118 |
SD = standard deviation, ERCP = endoscopic retrograde cholangiopancreatography.