Table 4.
Rate of decrease in serum bilirubin after preoperative biliary drainage n (%)
| Factors | Total (n = 40) | Fast decrease group (n = 20) | Slow decrease group (n = 20) | P |
| Drainage methods | 0.723 | |||
| ENBD | 29 (72.5) | 14 (70) | 15 (75) | |
| PTBD | 11 (27.5) | 6 (30) | 5 (25) | |
| Complication | 0.527 | |||
| Uncomplicated | 20 (50) | 11 (55) | 9 (45) | |
| Complicated | 20 (50) | 9 (45) | 11 (50) | |
| Bpod1 (μmol/L) | 1.9 ± 8.6 | 5.5 ± 4.4 | -1.7 ± 9.9 | 0.004 |
| Bpod2 (μmol/L) | 2.2 ± 9.1 | 1.9 ± 4.3 | 2.4 ± 12.3 | 0.818 |
Variables are presented as mean ± SD, unless specified otherwise. ENBD: Endoscopic nasobiliary drainage; PTBD: percutaneous transhepatic biliary drainage; Bpod1: decrease in serum bilirubin during the first postoperative week; Bpod2: decrease in serum bilirubin during the second postoperative week.