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Multivariate Analysis of Disease-Free Survival With p16
| Variable | Hazard Ratio (95% CI) | P Value |
|---|---|---|
| White | 0.76 (0.38-1.50) | .42 |
| Postoperative IMRT | 0.40 (0.23-0.72) | .002a |
| p16 positive | 0.26 (0.14-0.48) | <.001a |
| T stage 3 or 4 | 1.43 (1.06-1.92) | .02a |
Abbreviations: CI, confidence interval; IMRT, intensity-modulated radiation therapy.
Significant at P< .05.
