Table 2.
Means of all parameters that were evaluated per age group and in the total sample (TS).
| Parameters | MEAN 4 years | MEAN 5 years | MEAN 6 years | MEAN (AT) | SIGNIFICANCE* |
|---|---|---|---|---|---|
| f0 Hz | 255.06 | 253.18 | 248.87 | 252.81 | – |
| vf0% | 7.01 | 3.05 | 2.65 | 4.17 | 5 (p=0.015) and 6 years (p=0.05) > AT |
| vAm % | 25.24 | 31.72 | 27.72 | 28.88 | |
| PPQ % | 1.21 | 0.96 | 0.9 | 1.02 | |
| APQ % | 8.1 | 5.51 | 5.98 | 6.4 | |
| NHR | 0.26 | 0.17 | 0.17 | 0.2 | 4 years (p=0.013) > 5 years |
| 4 years (p=0.04) > 6 years | |||||
| AT (p=0.027) > 5 years | |||||
| VTI | 0.06 | 0.07 | 0.06 | 0.06 | |
| SPI | 3.3 | 4.02 | 3.25 | 3.64 |
• Statistical analysis using Student's “t,” test and the analysis of variance - ANOVA
• Number value of “p,” ≤ 0.05
*
• significant positive correlation