| P-value | Total | Focal decrease | Partial decrease | No basal melanin | GroupC |
| 0.407 | 12 (100%) | 6 (50%) | 6 (50%) | 0 (0%) | Pityriasis alba |
| 12 (100%) | 1 (8.33%) | 8 (66.67%) | 3 (25%) | Vitiligo | |
|
| 24 | 7 | 18 | 3 | Total |