Table 4.
Pooled analysis of present study and the literature regarding demographics, clinical characteristics, and trichoscopic features of syphilitic alopecia.
| Demographics and clinical characteristics (N = 41) | |
|---|---|
| Gender, n (%) | |
| ∙ Male | 38 (92.7) |
| ∙ Female | 3 (7.3) |
| Age of onset, years, mean ±SD | 31.6 ± 8.9 |
| Duration of alopecia, months, median (IQR) | 2 (1, 2) |
| Type of syphilitic alopecia, n (%) | |
| ∙ Symptomatic | 31 (75.6) |
| ∙ Essential | 10 (24.4) |
| Pattern of syphilitic alopecia, n (%) | |
| ∙ Moth-eaten pattern | 26 (63.4) |
| ∙ Diffuse pattern | 8 (19.5) |
| ∙ Mixed pattern | 7 (17.1) |
| Trichoscopic features, n (%) | |
| ∙ Short regrowing hairs | 32 (78) |
| ∙ Decreased hair per follicular unit | 31 (75.6) |
| ∙ Empty follicles | 21 (51.2) |
| ∙ Yellow dots | 18 (43.9) |
| ∙ Erythematous background | 18 (43.9) |
| ∙ Black dots | 14 (34.1) |
| ∙ Broken hairs | 12 (29.3) |
| ∙ Perifollicular scales | 5 (12.2) |
| ∙ Interfollicular scales | 4 (9.6) |
| ∙ Telangiectasia | 4 (9.6) |
| ∙ Hypopigmented hair shafts | 2 (4.9) |
| ∙ Pigtail hairs | 2 (4.9) |
| ∙ Zigzag hairs | 2 (4.9) |
| ∙ Flame hairs | 1 (2.4) |
| ∙ Bent tapering hairs | 1 (2.4) |
| ∙ Brown rings around perifollicular areas | 1 (2.4) |
| ∙ Reddish-brown background | 1 (2.4) |
IQR, interquartile range; SD, standard deviation.