Table 5. Factors influencing prognosis of patients with supraglottic squamous cell carcinoma.
| Variables | Cases | 5-year overall Survival rates | χ2 | P |
|---|---|---|---|---|
| Sex | 0.498 | 0.48 | ||
| Men | 106 | 41.5 | ||
| Women | 5 | 60.0 | ||
| Age | 0.049 | 0.824 | ||
| <60 years | 50 | 44.0 | ||
| ≥60 years | 61 | 41.0 | ||
| Subregion | 11.049. | 0.012 | ||
| Epiglottis | 27 | 51.9 | ||
| Ventricular bands | 23 | 60.9 | ||
| Aryepiglottic fold | 27 | 25.9 | ||
| Ventricle of larynx | 34 | 35.3 | ||
| pTstage | 7.325 | 0.062 | ||
| T1 | 4 | 75.0 | ||
| T2 | 37 | 48.6 | ||
| T3 | 46 | 41.3 | ||
| T4 | 24 | 29.2 | ||
| pN stage | 8.614 | 0.013 | ||
| N0 | 74 | 45.9 | ||
| N1 | 16 | 50.0 | ||
| N2 | 21 | 23.8 | ||
| N3 | 0 | 0 | ||
| pTNM stage | 10.880 | 0.012 | ||
| Stage I | 4 | 75.0 | ||
| Stage II | 27 | 51.9 | ||
| Stage III | 43 | 46.5 | ||
| Stage IV | 37 | 27.0 | ||
| Histology grade | 0.557 | 0.757 | ||
| G1 | 37 | 43.2 | ||
| G2 | 53 | 39.6 | ||
| G3 | 21 | 47.5 | ||
| Surgery type | 7.386 | 0.117 | ||
| Partial supraglottic laryngectomy | 6 | 16.7 | ||
| Horizontal hemilaryngectomy | 18 | 50.0 | ||
| Vertical hemilaryngectomy | 18 | 61.1 | ||
| Frontolateral laryngectomy | 2 | 50.0 | ||
| Total laryngectomy | 67 | 37.3 | ||
| Treatment modality | 0.127 | 0.939 | ||
| Surgery | 65 | 43.1 | ||
| Post-op RT treatment | 43 | 41.9 | ||
| Post-op chemotherapy | 3 | 33.3 | ||
| Neck lymph nodes metastasis | 2.961 | 0.085 | ||
| Yes | 37 | 35.1 | ||
| No | 74 | 45.9 |