Table 1 Epidemiological and clinical features of patients
From: Influence of age on voice quality after transoral CO2 laser microsurgery
Outcomes |  < 60 yo (N = 34) |  ≥ 60 yo (N = 41) | p-value |
|---|---|---|---|
Gender (M/F) | 29/5 | 36/5 | NS |
Smoker (pack-year, mean, SD) | 26.7 ± 25.3 | 33.1 ± 28.2 | NS |
Gastroesophageal reflux (N, %) | 5 (15) | 10 (24) | NS |
Age (ranges) | |||
 25–50 yo | 14 (41) | – | – |
 51–60 yo | 20 (59) | – | – |
 61–70 yo | – | 21 (51) | – |
 71–90 yo | – | 20 (49) | – |
cTNM | |||
 cTis | 14 (41) | 13 (32) | NS |
 cT1a | 15 (44) | 23 (56) | NS |
 cT1b | 4 (12) | 4 (10) | NS |
 cT2 | 1 (3) | 1 (2) | NS |
 N0 | 34 (100) | 41 (100) | NS |
 N +  | 0 (0) | 0 (0) | NS |
Margins | |||
 R0 | 66 (86.8) | 41 (74.5) | NS |
 R1 | 10 (13.2) | 14 (25.5) | NS |
Types of cordectomy | |||
 Type I | 15 (44) | 22 (54) | NS |
 Type II | 5 (15) | 6 (15) |  |
 Type III | 8 (24) | 3 (7) |  |
 Type IV | 1 (3) | 0 (0) |  |
 Type V | 3 (9) | 7 (17) |  |
 Type VI | 2 (6) | 3 (7) |  |
Complications | |||
 Granuloma | 4 (12) | 4 (10) | NS |
 Anterior commissure synechia | 0 (0) | 1 (2) | NS |