Clinical Study
Regional Failures after Selective Neck Dissection in Previously Untreated Squamous Cell Carcinoma of Oral Cavity
Table 6
Prognostic variables for 5-year regional control.
| Prognostic factor | Number () | 5-year regional control (%) | value |
| Tumor grade | | | | Well | 110 | 84 | 0.006 | Mod | 84 | 87 | Poorly | 25 | 62 | Lymphovascular invasion | | | | Positive | 12 | 68 | 0.044 | Negative | 153 | 85 | Unknown | 54 | 85 | Perineural invasion | | | | Positive | 28 | 75 | Not significant | Negative | 140 | 84 | Unknown | 51 | 84 | Pathological N stage | | | | N0 | 114 | 95 | <0.0001 | N+ | 105 | 81 | Pathological T stage | | | | T1-T2 | 186 | 82 | Not significant | T3-T4 | 33 | 91 | Number of positive nodes | | | | 1, 2 | 57 | 70 | Not significant | 3, 4, 5 | 26 | 71 | >5 | 22 | 61 |
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