Table 3.
The results of success and failure groups before and after operation.
| Overall (n = 17) | Success group (n = 9) | Failure group (n = 8) | ||||
|---|---|---|---|---|---|---|
| Pre | Post | Pre | Post | Pre | Post | |
| GRBAS | 2.02 (0.51) | 1.60 (0.72) | 2.02 (0.41) | 1.02 (0.29)+ | 2.02 (0.62) | 2.23 (0.45)∗ |
| MPT | 5.04 (1.91) | 16.06 (8.27) | 5.36 (1.92) | 15.72 (8.14)+ | 4.67 (1.95) | 16.45 (8.96)+ |
| Voice [a] | ||||||
| Jitter | 4.57 (4.09) | 1.59 (1.30)+ | 3.42 (2.45) | 0.81 (0.42)+ | 5.87 (5.27) | 2.48 (1.41)∗ |
| Shimmer | 0.85 (0.76) | 0.59 (0.37) | 0.56 (0.31) | 0.34 (0.17) | 1.18 (1.01) | 0.88 (0.34)∗ |
| NHR | 0.21 (0,15) | 0.17 (0.11) | 0.16 (0.08) | 0.12 (0.03) | 0.26 (0.19) | 0.23 (0.14) |
| NIrrP | 40.59 (13.60) | 34.70 (20.51) | 37.82 (14.77) | 35.17 (19.29) | 43.71 (12.35) | 34.16 (13.15)∗ |
| Voice [i] | ||||||
| Jitter | 4.12 (3.04) | 1.96 (1.74)+ | 2.86 (1.82) | 0.68 (0.32)+ | 5.53 (3.61) | 3.41 (1.52)∗+ |
| Shimmer | 0.85 (0.76) | 0.70 (0.47) | 0.56 (0.30) | 0.43 (0.31) | 1.18 (1.01) | 1.02 (0.44)∗ |
| NHR | 0.16 (0.13) | 0.21 (0.13) | 0.12 (0.05) | 0.14 (0.01) | 0.21 (0.17) | 0.30 (0.14)∗ |
| NIrrP | 43.16 (11.91) | 32.32 (16.23)+ | 31.48 (7.62) | 31.34 (15.62) | 51.30 (8.03) | 33.43 (17.91)∗+ |
∗ p < 0.05, success versus failure group; + p < 0.05, preoperation versus postoperation.
GRBAS, grade, roughness, breathiness, asthenia, and strain scale; MPT, maximum phonation time; NHR, noise to harmonic ratios.