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