Characteristic | Univariate analysis | Multivariate analysis | ||
---|---|---|---|---|
HR (95% CI) | p | HR (95% CI) | p | |
Sex | ||||
Male | 1 | — | ||
Female | 1.299 (0.940–1.794) | 0.113 | — | — |
Age | 1.012 (1.002–1.022) | 0.019 | 1.017 (1.005–1.030) | 0.007 |
Race | ||||
White | 1 | 1 | ||
Black | 1.698 (1.004–2.871) | 0.048 | 1.802 (0.974–3.334) | 0.061 |
Other and unknown | 1.247 (0.809–1.924) | 0.317 | 1.524 (0.930–2.495) | 0.094 |
Tumor grade | ||||
G1–2 | 1 | — | ||
G3–4 | 0.850 (0.470–1.537) | 0.590 | — | — |
Tumor size (mm) | 1.016 (1.009–1.023) | < 0.001 | 1.017 (1.009–1.025) | < 0.001 |
Number of RLNs | 0.997 (0.984–1.010) | 0.651 | — | — |
Number of PLNs | 1.047 (1.026–1.068) | < 0.001 | 1.021 (0.995–1.048) | 0.120 |
Tumor stage | ||||
II | 1 | 1 | ||
III | 1.922 (1.189–3.108) | 0.008 | 2.289 (1.170–4.478) | 0.016 |
Treatment | ||||
Surgery alone | 1 | 1 | ||
Preoperative RT | 0.627 (0.403–0.978) | 0.039 | 0.656 (0.391–1.100) | 0.110 |
Postoperative RT | 0.812 (0.520–1.268) | 0.359 | 0.788 (0.470–1.323) | 0.368 |