Table 2.
Sensitivity analysis concerning the primary outcome (diagnostic accuracy).
| Variable | Subgroup | No. of Studies | No. of Patients | Odds Ratio (95% CI) p-Value |
Within-Group Heterogeneity (I2) |
|---|---|---|---|---|---|
| Type of stent | Plastic | 5 | Stent: 573 No stent: 1095 |
0.89 (0.51–1.54) 0.67 |
21% |
| Metal | 4 | Stent: 342 No stent: 1021 |
0.54 (0.17–0.97) 0.05 |
17% | |
| Needle | FNB | 3 | Stent:471 No stent: 744 |
0.64 (0.43–0.95) 0.03 |
7% |
| FNA | 1 | Stent: 150 No stent: 64 |
1.36 (0.38–4.82) 0.63 |
NA | |
| Availability of ROSE | Yes | 2 | Stent: 225 No stent: 169 |
0.69 (0.23–2.06) 0.51 |
34% |
| Mean number of needle passes | 2 | 2 | Stent: 218 No stent: 239 |
0.82 (0.41–1.65) 0.59 |
0% |
| >2 | 3 | Stent: 478 No stent: 674 |
0.80 (0.67–1.82) 0.63 |
25% |
Abbreviation: CI, confidence interval; FNA, fine-needle aspiration; FNB, fine-needle biopsy; NA, not applicable; ROSE, rapid on-site cytologic evaluation.