Marker/factor | Â | HR | 95% CI | P |
---|---|---|---|---|
c-kit | 0, 1+ | 1 | 0.402 - 2.45 | 0.987 |
 | 2+, 3+ | 0.993 |  |  |
EGFR | 0 | 0.862 | 0.349 - 2.129 | 0.747 |
 | 1+, 2+ | 1 |  |  |
VEGF | 0, 1+ | 0.958 | 0.386 - 2.377 | 0.927 |
 | 2+, 3+ | 1 |  |  |
Sex | Male | 1 | 0.195 - 1.212 | 0.122 |
 | Female | 0.486 |  |  |
Site | Submandibular gland | 1 | Â | Â |
 | Parotid gland | 0.392 | 0.18 - 1.45 | 0.153 |
 | Minor salivary gland | 0.81 | 0.266 - 2.468 | 0.71 |
Histology | Tubular | 1 | Â | Â |
 | Cribriform | 0.513 | 0.061 - 4.283 | 0.538 |
 | Solid | 3.727 | 0.423 - 32.813 | 0.236 |
 | Indeterminate | 0.446 | 0.053 - 3.781 | 0.459 |
Perineural invasion | Negative | 1 | 0.384 - 2.405 | 0.932 |
 | Positive | 0.961 |  |  |
Resection margin | Negative | 1 | 0.224 - 1.406 | 0.217 |
 | Positive | 0.561 |  |  |
Lymph node involvement | Negative | 1 | 2.178 - 19.982 | <0.001 |
 | Positive | 6.597 |  |  |
Treatment | Surgery only | 1 | Â | Â |
 | Surgery + RT | 0.89 | 0.192 - 4.122 | 0.881 |
 | Surgery + CCRT | 4.002 | 0.793 - 20.197 | 0.093 |
Age (years) | Â | 0.949 | 0.902 - 0.998 | 0.071 |
Tumor size (cm) | Â | 0.864 | 0.566 - 1.318 | 0.498 |