Table 2 Outcome of patients with malignant biliary obstruction after percutaneous transhepatic biliary drainage (PTBD) according to the onset and severity of the cholangitis
30-day mortality, n (%) | P valuea | Median survival, months (95% CI) | 1-year survival, n (%) | P valuea | ||
|---|---|---|---|---|---|---|
All, n = 588 | 146 (24.8) | 2.7 (2.2 − 3.2) | 95 (16.2) | |||
Onset of cholangitis | 0.039 | 0.002 | ||||
No cholangitis, n = 217, 36.9% | 56 (25.8) | 3.2 (2.4 − 4.1) | 37 (17.1) | |||
Before PTBD, n = 156, 26.5% | 48 (30.8) | 1.8 (1.2 − 2.4) | 14 (9.0) | |||
After PTBD, n = 215, 36.6% | 42 (19.5) | 3.0 (2.2 − 3.8) | 44 (20.5) | |||
Severity of cholangitisb | < 0.001 | < 0.001 | ||||
Mild, n = 267, 72.0% | 50 (18.7) | 3.3 (2.5 − 4.0) | 46 (17.2) | |||
Moderate, n = 83, 22.4% | 26 (31.3) | 1.9 (1.2 − 2.6) | 11 (13.3) | |||
Severe, n = 21, 5.6% | 14 (66.7) | 0.3 (0.3 − 0.4) | 1 (4.8) | |||