Table 4.
Overall Complications and Conversion to External Drainage (PTBD) Risk Depending on the Type of Stent
| Complication and conversion to PTBD | Initial EBD, OR (95% CI) | Overall EBD, OR (95% CI) | |||
|---|---|---|---|---|---|
| BMS | MPS | BMS | MPS | ||
| Overall complication | |||||
| Crude | Reference | 1.36 (0.50–3.68) | Reference | 1.58 (0.67–3.72) | |
| Adjusted | Reference | 1.49 (0.52–4.23) | Reference | 1.70 (0.71–4.04) | |
| Conversion to PTBD | |||||
| Crude | Reference | 1.34 (0.52–3.46) | Reference | 1.07 (0.47–2.41) | |
| Adjusted | Reference | 1.38 (0.50–3.79) | Reference | 1.17 (0.51–2.72) | |
Adjusted for body mass index, bismuth type (I/II, IIIa/IIIb and IV), time varying total bilirubin, PT INR, and albumin.
PTBD, percutaneous transhepatic biliary drainage; EBD, endoscopic biliary drainage; OR, odds ratio; CI, confidence interval; BMS, bilateral metal stents; MPS, multiple plastic stents; PT, prothrombin time; INR, international normalized ratio.