| No (%) of Patients | Succesful Voice Rehabilitation | P value | |
| Age (years) | 0.11 | ||
| <60 | 26/83 (31.3) | 21/26 (80.8) | |
| ≥60 | 57/83 (68.7) | 36/57 (63.2) | |
| Comorbidity no. (%) | 0.59 | ||
| ASA ≤ 3 | 64/83 (77.1) | 43/64 (67.2) | |
| ASA˃3 | 19/83 (22.9) | 14/19 (73.7) | |
| Tumor site no. (%) | 0.55 | ||
| Larynx | 72/83 (86.7) | 50/72 (69.4) | |
| Hypopharynx | 11/83 (13.3) | 6/11 (54.5) | |
| Staging no. (%) | 0.08 | ||
| ≤III | 30/83 (36.1) | 17/30 (56.7) | |
| ˃III | 53/83 (63.9) | 40/53 (75.5) | |
| Resection no. (%) | 0.68 | ||
| TL | 63/83 (75.9) | 44/63 (69.8) | |
| PLT | 20/83 (24.1) | 13/20 (65.0) | |
| Time of TEP no. (%) | 0.59 | ||
| PTEP | 64 (77.1) | 43/64 (67.2) | |
| PTES | 19 (22.9) | 14/19 (73.7) | |
| Radio therapy no. (%) | 0.85 | ||
| No | 17/83 (20.5) | 12/17 (70.6) | |
| Yes | 66/83 (75.9) | 45/66 (68.2) |