Table 3.
Perceptual voice quality according to the grade, roughness, breathiness, asthenia and strain (GRBAS) scale3
| Item; score* | Group A, no. of patients | Group B, no. of patients | ||||
|---|---|---|---|---|---|---|
|
|
|
|||||
| 3 mo | 9 mo | p value† | 3 mo | 9 mo | p value† | |
| Grade | ||||||
|
| ||||||
| 4 | 0 | 0 | 0.03 | 1 | 0 | 0.01 |
|
| ||||||
| 3 | 0 | 0 | 4 | 2 | ||
|
| ||||||
| 2 | 3 | 0 | 2 | 3 | ||
|
| ||||||
| 1 | 2 | 2 | 0 | 2 | ||
|
| ||||||
| 0 | 0 | 3 | 0 | 0 | ||
|
| ||||||
| Roughness | ||||||
|
| ||||||
| 3 | 0 | 0 | 0.04 | 5 | 4 | 0.3 |
|
| ||||||
| 2 | 2 | 0 | 1 | 2 | ||
|
| ||||||
| 1 | 3 | 3 | 1 | 1 | ||
|
| ||||||
| 0 | 0 | 2 | 0 | 0 | ||
|
| ||||||
| Breathiness | ||||||
|
| ||||||
| 4 | 0 | 0 | 0.04 | 2 | 1 | 0.08 |
|
| ||||||
| 3 | 0 | 0 | 4 | 3 | ||
|
| ||||||
| 2 | 3 | 0 | 1 | 3 | ||
|
| ||||||
| 1 | 2 | 1 | 0 | 0 | ||
|
| ||||||
| 0 | 0 | 4 | 0 | 0 | ||
|
| ||||||
| Asthenia | ||||||
|
| ||||||
| 4 | 0 | 0 | 0.05 | 1 | 0 | 0.2 |
|
| ||||||
| 3 | 0 | 0 | 4 | 5 | ||
|
| ||||||
| 2 | 1 | 0 | 2 | 2 | ||
|
| ||||||
| 1 | 4 | 1 | 0 | 0 | ||
|
| ||||||
| 0 | 0 | 4 | 0 | 0 | ||
|
| ||||||
| Strain | ||||||
|
| ||||||
| 4 | 0 | 0 | 0.04 | 3 | 1 | 0.08 |
|
| ||||||
| 3 | 0 | 0 | 4 | 5 | ||
|
| ||||||
| 2 | 4 | 0 | 0 | 1 | ||
|
| ||||||
| 1 | 1 | 1 | 0 | 0 | ||
|
| ||||||
| 0 | 0 | 4 | 0 | 0 | ||
*
0 = normal, 1 = mild dysphonia, 2 = moderate dysphonia, 3 = severe dysphonia, 4 = aphonia.
†
Wilcoxon signed-rank test for paired observations applied to values measured at 3 and 9 months.