TABLE 1.
Patients characteristics
| N | 241 (%) |
|---|---|
| Mean age (range) | 67 (56–74) |
| Sex | |
| Female | 30 (12) |
| Male | 211 (88) |
| Tobacco | |
| Ever | 219 (91) |
| Never | 22 (9) |
| Alcohol | |
| Ever | 102 (42) |
| Never | 139 (58) |
| WUHNCI | |
| 0–1 | 198 (82) |
| ≥2 | 43(18) |
| Tumor location | |
| Glottic | 172 (71) |
| Supraglottic | 66 (27) |
| Subglottic | 3 (1) |
| Clinical T stage | |
| Tis | 6 (3) |
| T1 | 112 (47) |
| T2 | 66 (27) |
| T3 | 39 (16) |
| T4 | 18 (8) |
| Clinical N stage | |
| Nx-N0 | 213 (88) |
| N1 | 10 (4) |
| N2 | 15 (6) |
| N3 | 3 (1) |
| Clinical overall stage | |
| 0 | 6 (3) |
| I | 110 (46) |
| II | 57 (24) |
| III | 38 (16) |
| IV | 30 (12) |
| Pathological T stage | |
| T1 | 59 (25) |
| T2 | 60 (25) |
| T3 | 58 (24) |
| T4 | 64 (27) |
| Pathological N stage | |
| Nx-N0 | 209 (87) |
| N1 | 12 (5) |
| N2 | 7 (3) |
| N3 | 13 (5) |
| Overall stage | |
| Stage I | 55 (23) |
| Stage II | 54 (22) |
| Stage III | 56 (23) |
| Stage IV | 76 (32) |
| Tumor differentiation | |
| Well | 47 (19) |
| Moderate | 142 (59) |
| Poorly | 41 (17) |
| Spindle | 8 (3) |
| Verrucous | 3 (1) |
| Cartilage invasion | |
| No | 155 (64) |
| Yes | 86 (36) |
| Thyroid invasion | |
| No | 226 (94) |
| Yes | 15 (6) |
| PNI | |
| No | 135 (56) |
| Yes | 106(44) |
| LVI | |
| No | 184 (76) |
| Yes | 57 (24) |
| ENE | |
| No | 121 (82) |
| Yes | 19 (13) |
| Unknown | 7 (5) |
| Margins | |
| Negative | 181 (75) |
| Close | 37 (15) |
| Positive | 23 (10) |
| Median tumor diameter | 2.30 cm (0.10–9.00 cm) |
Abbreviations: ENE, extranodal extension; LVI, lymphovascular invasion; PNI, perineural invasion; WUHNCI, Washington University Head and Neck Comorbidity Index.