Table 2.
Voice Handicap Index and perceptual evaluation results
| Groups | Preoperative Mean |
6 weeks Mean (∆) |
3 months Mean (∆) |
6 months Mean (∆) |
1 year Mean (∆) |
2 years Mean (∆) |
p value |
|---|---|---|---|---|---|---|---|
| Voice Handicap Index | |||||||
| Overall (n = 61) | 30.5 | 30.7 (0.23) | 27.0 (− 3.5) | 23.3 (− 7.2) | 23.8 (− 6.7) | 21.8 (− 8.7) | 0.003 |
| Male (n = 51) | 31.8 | 33.1 (1.3) | 28.8 (− 3.0) | 25.7 (− 6.0) | 24.8 (− 6.9) | 23.9 (− 7.9) | < 0.001 |
| Female (n = 10) | 24.0 | 18.5 (5.5) | 17.8 (− 6.2) | 10.4 (13.6) | 18.9 (− 5.1) | 8.7 (− 15.3) | 0.111 |
| Perceptual evaluation—grade | |||||||
| Overall (n = 61) | 1.5 | 1.9 (0.41) | 1.6 (0.11) | 1.4 (− 0.11) | 1.3 (− 0.20) | 1.4 (− 0.05) | < 0.001 |
| T1a (n = 29) | 1.3 | 1.6 (0.32) | 1.2 (− 0.09) | 1.1 (− 0.17) | 1.1 (− 0.19) | 1.0 (− 0.29) | 0.027 |
| T1b (n = 19) | 1.8 | 2.4 (0.69) | 2.1 (0.34) | 1.7 (− 0.08) | 1.7 (− 0.03) | 1.9 (− 0.15) | 0.003 |
| T2 (n = 13) | 1.7 | 1.9 (0.23) | 1.8 (0.08) | 1.6 (− 0.07) | 1.3 (− 0.39) | 1.7 (− 0.01) | 0.198 |
| Male (n = 51) | 1.5 | 2.0 (0.48) | 1.6 (0.11) | 1.4 (− 0.10) | 1.4 (− 0.12) | 1.5 (− 0.03) | < 0.001 |
| Female (n = 10) | 1.6 | 1.6 (0.01) | 1.5 (− 0.12) | 1.4 (− 0.22) | 1.0 (− 0.58) | 1.4 (− 0.25) | 0.481 |
∆difference between preoperative and the indicated follow-up time