Table 5:
Chi Squared Analysis of Factors Predicting Local and Metastatic Recurrence
| Metastatic Disease | Local Recurrence | |||
|---|---|---|---|---|
| Variable | % | p | % | p |
| Age | ||||
| ≤55 | 36.0 | 0.713 | 24.2 | 0.123 |
| >55 | 21.9 | 9.7 | ||
| Sex | ||||
| Female | 15.8 | 0.075 | 16.7 | 0.900 |
| Male | 34.5 | 17.9 | ||
| Smoker | ||||
| Never | 23.1 | 0.535 | 23.1 | 0.289 |
| Previous/ Current | 30.3 | 12.5 | ||
| T stage | ||||
| 1&2 | 12.5 | 0.041 | 6.3 | 0.131 |
| 3&4 | 34.5 | 19.2 | ||
| N stage | ||||
| N0 | 23.6 | 0.854 | 11.1 | 0.411 |
| N1 | 20.0 | 25.0 | ||
| Overall stage | ||||
| 1&2 | 12.9 | 0.057 | 6.5 | 0.159 |
| 3&4 | 33.3 | 18.5 | ||
| Location | ||||
| Major Gland | 17.4 | 0.368 | 31.0 | 0.214 |
| Other | 27.3 | 5.7 | ||
| Skull Base | ||||
| Y | 33.3 | 0.410 | 33.3 | 0.033 |
| N | 22.0 | 8.8 | ||
| Presentation | ||||
| Asymptomatic | 16.7 | 0.224 | 4.5 | 0.102 |
| Symptomatic | 30.6 | 20.0 | ||
| Treatment | ||||
| Surg | 0 | 0.017 | 14.3 | 0.131 |
| Surg + Rad | 27.5 | 12.5 | ||
| Rad | 50.0 | 42.9 | ||
| Radiation Dosage | ||||
| ≤65 | 34.8 | 0.833 | 13.0 | 0.202 |
| >65 | 31.8 | 28.6 | ||
| Margins | ||||
| Negative | 21.1 | 0.932 | 15.8 | 0.377 |
| Positive | 20.0 | 6.7 | ||
| Perineural Invasion | ||||
| Y | 26.3 | 0.050 | 15.4 | 0.942 |
| N | 14.7 | 14.7 | ||
| Lymphatic Invasion | ||||
| Y | 12.5 | 0.422 | 14.3 | 0.924 |
| N | 25.5 | 15.7 | ||
| Cartilage Invasion | ||||
| Y | 16.7 | 0.668 | 0 | 0.316 |
| N | 24.5 | 17.0 | ||
*
Y = yes, N = no, Surg = surgery, Rad = radiation