Table 2.
Differences in tde frequency of hair disorders by gender and age
| Type of alopecia | Gender | Median age (range), years |
|
|---|---|---|---|
| by gender | total | ||
| Androgenetic alopecia (n = 1,180) | male: 33% | male: 33 (11–76) | 40 (11–91) |
| female: 67% | female: 45 (12–91) | ||
| Alopecia areata (n = 568) | male: 36% | male: 28 (1–63) | 32 (1–82) |
| female: 64% | female: 37 (3–82) | ||
| Acute telogen effluvium (n = 183) | male: 10% | male: 35 (18–65) | 41 (9–76) |
| female: 90% | female: 41 (9–76) | ||
| Chronic telogen effluvium (n = 172) | male: 7% | male: 31 (17–86) | 42 (13–92) |
| female: 93% | female: 43 (13–92) | ||
| Frontal fibrosing alopecia (n = 337) | male: 5% | male: 45 (31–70) | 60 (31–89) |
| female: 95% | female: 61 (31–89) | ||
| Lichen planopilaris (n = 239) | male: 17% | male: 43 (13–74) | 54 (8–86) |
| female: 83% | female: 56 (8–86) | ||
| Folliculitis decalvans (n = 88) | male: 64% | male: 40 (19–73) | 40 (17–75) |
| female: 36% | female: 41 (17–75) | ||
| Discoid lupus (n = 60) | male: 12% | male: 39 (27–58) | 56 (19–81) |
| female: 88% | female: 59 (19–81) | ||
| FAPD (n = 57) | male: 11% | male: 57 (24–73) | 59 (21–82) |
| female: 89% | female: 59 (21–82) | ||
| Traction alopecia (n = 44) | male: 2% | male: 44 (1 case) | 41 (11–67) |
| female: 98% | female: 40 (11–67) | ||
| CCCA (n = 30) | male: 3% | male: 56 (1 case) | 47 (27–72) |
| female: 97% | female: 46 (27–72) | ||
| Dissecting cellulitis (n = 29) | male: 76% | male: 33 (19–69) | 37 (18–83) |
| female: 24% | female: 57 (18–83) | ||
| Acne keloidalis nuchae (n = 17) | male: 88% | male: 32 (22–55) | 32 (22–62) |
| female: 12% | female: 51 (40–62) | ||
| Trichotillomania (n = 12) | male: 42% | male: 25 (14–41) | 25 (8–41) |
| female: 58% | female: 25 (8–35) | ||
| Hair shaft disorders (n = 12) | male: 42% | male: 15 (8–70) | 14 (3–70) |
| female: 58% | female: 4 (3–61) | ||
| Total (n = 3,133) | male: 26.4% | male: 33 (1–86) | 43 (1–92) |
| female: 73.6% | female: 47 (2–92) | ||