Table 4. Multivariate Analysis of Outcome.
| Variable | Overall survival (p value) |
Disease-specific survival (p value) |
|
|---|---|---|---|
| Age (y) | <70 >70 |
0.03 | 0.02 |
| T classification | 1/2 3/4 |
0.78 | 0.56 |
| N classification | 1-4 | 0.05 | 0.06 |
| Treatment | Surgery Surgery + RT ChRT |
0.99 | 0.84 |
| Margins status | Positive Negative |
0.05 | 0.06 |
| Perineural invasion | Yes No |
0.13 | 0.24 |
| Intraorbital invasion | Yes No |
0.37 | 0.66 |
| Dural invasion | Yes No |
0.74 | 0.42 |
| Cavernous sinus invasion | Yes No |
0.67 | 0.78 |
| Bone invasion | Yes No |
0.36 | 0.65 |
| Tumor site | Maxillary Nasal cavity Ethmoid/sphenoid |
0.007 | 0.009 |
Abbreviations: ChRT, chemoradiation therapy; RT, radiotherapy.