Table 4. Comparison among self-reported indicators on the intervention benefits within the groups for 31 public school teachers. Salvador, BA, Northeastern Brazil, 2013.
| Indicator | Vocal warm-up |
Breathing training |
p | ||
|---|---|---|---|---|---|
| n = 14 | % | n = 17 | % | ||
| General voice improvement | |||||
| Yes | 9 | 64.3 | 2 | 11.8 | 0.003* |
| No | 5 | 35.7 | 15 | 88.2 | |
| Improved speech clarity | |||||
| Yes | 7 | 50.0 | 3 | 17.7 | 0.120 |
| No | 7 | 50.0 | 14 | 82.3 | |
| Higher ease of speech | |||||
| Yes | 8 | 57.2 | 3 | 17.7 | 0.030* |
| No | 6 | 42.8 | 14 | 82.3 | |
| Confidence in the intervention | |||||
| Yes | 14 | 100 | 13 | 76.5 | 0.107 |
| No | 0 | 0 | 4 | 23.5 | |
* Fisher’s exact test.