Table 3.
Bivariate analysis of regional recurrence free survival (RRFS) and disease specific survival (DSS):
| Regional Recurrence Free Survival (RRFS) | Disease Specific Survival (DSS) | |||
|---|---|---|---|---|
|
| ||||
| Factor (n) | 2-Yr RRFS |
p value | 2-Yr DSS |
p value |
|
| ||||
| Gender | 0.767 | 0.233 | ||
| Male (69) | 87.2% | 73.3% | ||
| Female (39) | 83.9% | 83.4% | ||
|
| ||||
| Age | 0.777 | 0.227 | ||
| <60 (49) | 87.3% | 79.5% | ||
| >60 (59) | 84.6% | 74.7% | ||
|
| ||||
| Primary site | 0.060 | 0.004 | ||
| Oral cavity (77) | 82.7% | 69.2% | ||
| Oropharynx (24) | 100% | 100% | ||
|
| ||||
| Primary T Stage |
0.311 | 0.003 | ||
| <T3 (71) | 87.2% | 85.4% | ||
| ≥ T3 (37) | 85.9% | 60.3% | ||
|
| ||||
| Bilateral Neck Disease | 0.046 | 0.921 | ||
| No (93) | 88.6% | 76.1% | ||
| Yes (15) | 77.1% | 83.1% | ||
|
| ||||
| Number of Positive nodes: | 0.675 | 0.164 | ||
| 1–2 (72) | 84% | 83% | ||
| >2 (36) | 91.7% | 83% | ||
|
| ||||
| Extracapsular extension | 0.192 | 0.653 | ||
| No (70) | 87.9% | 79.8% | ||
| Yes (38) | 82.9% | 70% | ||
|
| ||||
| Margins on primary site | 0.266 | 0.000 | ||
| Negative (96) | 87.1% | 82.8% | ||
| Positive (12) | 78.6% | 30.6% | ||
|
| ||||
| Perineural Invasion | 0.516 | 0.126 | ||
| No (65) | 88.8% | 82.5% | ||
| Yes (43) | 82.1% | 69.7% | ||
|
| ||||
| Lymphovascular Invasion | 0.409 | 0.407 | ||
| No (70) | 83.5% | 74.3% | ||
| Yes (38) | 90.5% | 80.8% | ||
|
| ||||
| Adjuvant Treatments | 0.051 | 0.003 | ||
| Yes (95) | 88.1% | 80.8% | ||
| No (13) | 80.8% | 46.9% | ||