TABLE 1.
Descriptive data for the clinical features and risk factors in melasma patients
| Subjects (N = 51) | |
|---|---|
| Age mean (standard deviation ) | 38.43 y (±6.75) |
| Age at onset of melasma | |
| Mean (standard deviation) | 29.18 y (±7.05) |
| Fitzpatrick skin phototype | N (%) |
| I | 0 |
| II | 2 (3.92%) |
| III | 25 (49.02%) |
| IV | 17 (33.33%) |
| V | 7 (13.73%) |
| VI | 0 (0%) |
| Duration of melasma (mean ± standard deviation) | 9.25 y (±6.18) |
| (median) | 9.0 y |
| Familial History | |
| Yes | 25 (49.02%) |
| No | 26 (50.98%) |
| Onset during pregnancy | |
| Yes | 23 (45.10%) |
| No | 28 (54.90%) |
| Onset after hormonal contraception | |
| Yes | 5 (9.80%) |
| No | 46 (90.20%) |
| Thyroid disorder | |
| Yes | 4 (7.84%) |
| No | 47 (92.16%) |