P-value by | Total | Focal decrease in melanin | All field decrease in melanin | No basal melanin | Group C |
0.345 | 12 (100%) | 4 (33.33%) | 8 (66.67) | 0 (0%) | Pityriasis alba |
12 (100%) | 2 (16.67%) | 6 (50%) | 4 (33.33%) | Vitiligo | |
| 24 | 6 | 14 | 4 | Total |