Table 1.
Patient demographics and sum of hemifaces that received PN (n = 26)
| Characteristic | Value (N = 26) |
|---|---|
| Age (years), mean ± SD (min–max) | 43.2 ± 7.0 (24–54) |
| Sex, n (%) | |
| Female | 26 (100%) |
| Male | 0 (0%) |
| Melasma type* | |
| Malar | 21 (80.8%) |
| Centrofacial | 5 (19.2%) |
| Mandibular | 5 (19.2%) |
| Wood’s lamp examination | |
| Mixed | 16 (61.5%) |
| Dermal | 5 (19.2%) |
| Epidermal | 5 (19.2%) |
| Duration of melasma (years) | 8.9 ± 6.5 (2–30) |
| Previous treatment, n (%) | |
| Topical drugs | 9 (45.0%) |
| Laser treatment | 4 (20.0%) |
| Sunscreen use, n (%) | |
| Always | 22 (84.6%) |
| Sometimes | 4 (15.4%) |
| Number of hemifaces that received PN | |
| Right | 13 (50%) |
| Left | 13 (50%) |