Table 4.
Univariate and multivariate analysis of risk factors for stent obstruction during follow-up
| Data | Univariate analysis | Multivariate analysis | ||
|---|---|---|---|---|
|
|
|
|||
| OR (CI 95%) | P | CI 95% | P | |
| Etiology of obstruction | ||||
| Pancreatic adenocarcinoma | 1 | - | - | - |
| Cholangiocarcinoma | 3.3 (0.7–15) | 0.12 | - | - |
| Duodenal cancer | 1.48 (0.29–7.9) | 0.64 | - | - |
| Vater adenocarcinoma | 3.3 (0.28–39.6) | 0.34 | - | - |
| Other | 2.2 (0.4–12.3) | 0.36 | - | - |
| Bile duct diameter | 0.88 (0.78–1) | 0.052 | - | - |
| Duodenal stenosis | ||||
| No | 1 | - | - | |
| Yes | 1.8 (0.68–4.8) | 0.231 | - | - |
| Duodenal stent | ||||
| No | 1 | |||
| Yes | 3.9 (1.4–10.7) | 0.009 | 3.6 (1.2–10.2) | 0.018 |
| Bile duct diameter <15 mm | ||||
| No | 1 | - | - | - |
| Yes | 4.2 (1.47–12.2) | 0.007 | 3.9 (1.3–11.7) | 0.015 |
CI: Confidence interval; OR: Odds ratio