Table 1.
Baseline characteristics and quality of included studies
| Study | Design | Males, n (%) | Age (years) | Overall survival (days) | EUS-BD modality | ERCP stent type | EUS stent | Quality of study |
|---|---|---|---|---|---|---|---|---|
| Bang | RCT | EUS: 33 (51.5) | 69.4 | 190 | EUS-CDS | Fully-covered SEMS | SEMS | Low quality (high risk of performance bias, low risk of selection, detection, attrition, or reporting bias) |
| ERCP: 34 (67.6) | 69.2 | 174 | ||||||
| Park | RCT | EUS: 14 (64.29) | 65.4 | 188 | EUS-CDS | Partially-covered SEMS | SEMS | Low quality (high risk of performance bias, low risk of selection, detection, attrition, or reporting bias) |
| ERCP: 14 (57.14) | 66.8 | 197 | ||||||
| Paik | RCT | EUS: 64 (64.06) | 64.8 | 144 | EUS-CDS and EUS-HGS | SEMS (uncovered, partially/fully covered) | SEMS | Low quality (high risk of performance bias, low risk of selection, detection, attrition, or reporting bias) |
| ERCP: 61 (42.62) | 68.4 | 178 | ||||||
| Nakai | Prospective cohort | EUS: 34 (53) | 79 | 249 | EUS-CDS | SEMS (unspecified covering) | SEMS | High quality |
| ERCP: 25 (48) | 69 | 216 | ||||||
| Kawakubo | Retrospective | EUS: 26 (30.8) | 71 | 296 | EUS-CDS | SEMS (uncovered, partially/fully covered) | SEMS | High quality |
| ERCP: 56 (53.6) | 68 | 156 |
RCT: Randomized controlled trials; SEMS: Self-expanding metal stents; BD: Biliary drainage; CDS: Choledochoduodenostomy; HGS: Hepaticogastrostomy.