Table 1.
Vitiligo prevalence by country
| Region | N | Total vitiligo prevalence | Diagnosed* | Undiagnosed† | Vitiligo signs‡ | ||||
|---|---|---|---|---|---|---|---|---|---|
| n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n § | % (95% CI) | ||
| Total | 35 694 | 471 | 1.3 (1.2–1.4) | 219 | 0.6 (0.5–0.7) | 133 | 0.4 (0.3–0.4) | 119 | 0.3 (0.3–0.4) |
| Europe | 18 785 | 308 | 1.6 (1.5–1.8) | 150 | 0.8 (0.7–0.9) | 88 | 0.5 (0.4–0.6) | 70 | 0.4 (0.3–0.5) |
| France | 3678 | 46 | 1.2 (0.9–1.6) | 30 | 0.8 (0.5–1.1) | 5 | 0.1 (0.0–0.3) | 11 | 0.3 (0.1–0.5) |
| Germany | 6590 | 75 | 1.1 (0.9–1.4) | 30 | 0.5 (0.3–0.6) | 26 | 0.4 (0.2–0.5) | 19 | 0.3 (0.2–0.4) |
| Italy | 2025 | 64 | 3.1 (2.4–3.9) | 30 | 1.5 (1.0–2.0) | 27 | 1.3 (0.8–1.8) | 7 | 0.3 (0.1–0.6) |
| Spain | 3794 | 74 | 1.9 (1.5–2.4) | 30 | 0.8 (0.5–1.1) | 17 | 0.4 (0.2–0.7) | 27 | 0.7 (0.4–1.0) |
| UK | 2698 | 50 | 1.9 (1.3–2.4) | 30 | 1.1 (0.7–1.5) | 13 | 0.5 (0.2–0.7) | 7 | 0.3 (0.1–0.5) |
| USA | 8517 | 118 | 1.4 (1.1–1.6) | 48 | 0.6 (0.4–0.7) | 32 | 0.4 (0.2–0.5) | 38 | 0.4 (0.3–0.6) |
| Japan | 8392 | 45 | 0.5 (0.4–0.7) | 21 | 0.3 (0.1–0.4) | 13 | 0.2 (0.1–0.2) | 11 | 0.1 (0.1–0.2) |
*
Self‐reporting vitiligo and diagnosed by a physician.
†
Self‐reporting vitiligo but not diagnosed.
‡
Experiencing signs associated with vitiligo but not diagnosed.
§
The total number of participants with vitiligo signs was rounded for each region/country because they are based on the algorithm used to account for the 13% adjustment in reporting accuracy.