Table 1.
Summary of etiological investigation of female alopecia (n=155)
| Disease category | n (%) |
|---|---|
| Nutrient deficiency | 130 (83.9) |
| ID | 109 (70.3) |
| Zinc deficiency | 61 (39.4) |
| Iron and zinc deficiency | 40 (25.8) |
| Autoimmune disease | 23 (14.8) |
| AA | 14 (9.0) |
| Sicca syndrome | 6 (3.9) |
| Vitiligo | 3 (1.9) |
| RA | 1 (0.6) |
| SLE | 1 (0.6) |
| Psychological stress | 19 (12.3) |
| Thyroid disease | 12 (7.7) |
| Hypothyroidism | 8 (5.2) |
| Hyperthyroidism | 4 (2.6) |
| COVID-19 vaccination | 10 (6.5) |
| Malignancy | 8 (5.2) |
| Metabolic syndrome | 7 (4.5) |
| COVID-19 infection | 5 (3.2) |
| Hereditary disease (thalassemia, G6PD deficiency) | 2 (1.3) |
AA: Alopecia areata, RA: Rheumatoid arthritis, SLE: Systemic lupus erythematosus, G6PD: Glucose-6-phosphate dehydrogenase, ID: Iron deficiency, COVID-19: Coronavirus disease 2019