Table 2 Univariate evaluation of 5-year local control, disease-free survival, and overall survival
Characteristics | n = 174 | Loco-regional control (%) | Disease-free survival (%) | Overall survival (%) |
|---|---|---|---|---|
Location of primary tumor | ||||
Tongue Buccal Mouth floor Gingiva P-value | 99 46 18 11 | 88.6 69.6 71.3 100 0.012 | 71.6 67.1 61.1 81.8 0.711 | 71.5 67.1 66.7 81.8 0.770 |
T stage | ||||
T1 T2 T3 T4 P-value | 41 45 68 20 | 87.2 71.7 86.5 83.3 0.262 | 70.5 57.4 76.5 75.0 0.281 | 70.5 59.4 76.5 75.0 0.307 |
N stage | ||||
N0 N1 N2 N3 P-value | 51 59 63 1 | 90.1 93.2 64.0 0.0 < 0.001 | 84.3 89.4 41.1 0.0 < 0.001 | 84.3 89.4 42.6 0.0 < 0.001 |
ECS | ||||
No lymph node involvement - + P-value | 51 73 50 | 90.1 84.4 70.2 0.062 | 84.3 73.7 49.9 < 0.001 | 84.3 75.1 49.6 < 0.001 |
Pathology stage | ||||
III IVA IVB P-value | 87 85 2 | 89.6 76.4 0.0 < 0.001 | 83.7 57.6 0.0 < 0.001 | 83.7 58.7 0.0 < 0.001 |
Depth of invasion | ||||
≤ 0.5 cm 0.5 cm<doi ≤ 1 cm >1 cm P-value | 21 73 80 | 80.9 83.5 82.5 0.960 | 61.9 50.7 50.0 0.607 | 61.9 50.7 48.8 0.559 |