Table 4: Correlation between duration, severity of the disease (no. of affected sites) and PTA among cases
Frequency KHz |
Duration r-value |
Severity r-value |
p |
0.25 |
0.06 |
0.12 |
> 0.05 |
0.5 |
0.14 |
0.07 |
> 0.05 |
1 |
0.18 |
0.13 |
> 0.05 |
2 |
0.09 |
0.01 |
> 0.05 |
4 |
0.11 |
0.06 |
> 0.05 |
8 |
0.17 |
0.18 |
> 0.05 |
12 |
0.15 |
-0.11 |
> 0.05 |
16 |
0.21 |
0.12 |
> 0.05 |
No significant correlation between duration, distribution sites of vitiligo and PTA in the study group was found