Table 4.
Univariate and Multivariate Analyses of Risk Factors for Recurrence
| Variable | Univariate analysis | Multivariate analysis | |||
|---|---|---|---|---|---|
| HR (95% CI) | p-value | HR (95% CI) | p-value | ||
| Male sex | 0.83 (0.38–1.79) | 0.626 | |||
| Age | 1.00 (0.97–1.03) | 0.932 | |||
| Familial adenomatous polyposis | 1.76 (0.41–7.57) | 0.447 | |||
| Tumor size >10 mm | 1.04 (0.47–2.30) | 0.930 | |||
| Villous or villotubular growth pattern (vs tubular adenoma) | 1.95 (0.86–4.45) | 0.111 | 2.33 (0.99–5.44) | 0.050 | |
| High histologic grade | 2.34 (1.09–5.01) | 0.029 | 2.74 (1.26–5.96) | 0.011 | |
| Piecemeal resection (vs en bloc) | 1.44 (0.50–4.16) | 0.500 | |||
| Intraductal extension | 13.06 (2.90–58.86) | <0.001 | 10.34 (2.10–50.88) | 0.004 | |
| Submucosal injection | 2.32 (1.10–4.93) | 0.029 | 2.57 (1.16–5.72) | 0.021 | |
| Additional ablation | 1.03 (0.50–2.19) | 0.931 | |||
HR, hazard ratio; CI, confidence interval