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Baseline characteristics of the study population
| Characteristic | Study population (n=43) |
|---|---|
| Age, mean (SD), years | 10.0 (5.7) |
| Male gender (%) | 69.8% |
| Co-morbid skin disease (%) | |
| Alopecia areata | 11.1% |
| Atopic dermatitis | 25.6% |
| Lichen planus | 2.3% |
| Psoriasis | 7.0% |
| None | 61.5% |
| Relatives with trachyonychia (%) | 16.3% |
