TABLE 2.
Univariate and Multivariate Cox Regression Models for Overall Survival in Patients Receiving Additional Therapy, n = 73
| Variable | Univariate Analysis
|
Multivariate Analysis
|
||
|---|---|---|---|---|
| HR (95% CI) | P | HR (95% CI) | P | |
| Tumor size | 1.04 (0.93–1.17) | .45 | ||
| Positive margin | 7.84 (2.75–22.34) | <.001a | 7.31 (2.53–21.13) | <.001a |
| Positive lymph node(s) | 1.92 (0.78–4.69) | .15 | ||
| Perineural invasion | 1.31 (0.56–3.09) | .53 | ||
| Lymphovascular Invasion | 1.02 (0.47–2.24) | .95 | ||
| Tumor grade | 1.55 (0.67–3.62) | .31 | ||
| Tumor classification | 2.83 (0.78–10.19) | .11 | ||
| High ERCC1 expression | 2.39 (1.08–5.33) | .03a | 2.22 (1.05–4.98) | .048a |
Abbreviations: CI, confidence interval; ERCC1, excision repair cross-complementing gene-1; HR, hazard ratio.
a
These P values indicate statistical significance.