Table II.
Doctor-diagnosed 1-year prevalence of atopic dermatitis (AD) in adults assessed in the year 2000 or later by continents
| Study | Study type | n | Age, years | One-year prevalence of doctor-diagnosed AD | |||||
|---|---|---|---|---|---|---|---|---|---|
| Europe (%) | Africa (%) | North America (%) | South America (%) | Asia (%) | Australia (%) | ||||
| Abuabara et al. 2018 (195) | GP health records | 848,435 | 18–74 | 5.1 | |||||
| Abuabara et al. 2019 (34) | Health improvement network | 8,604,333 | 75–99 | 8.7 | |||||
| Barbarot et al. 2018 (210) | Multinational cross-sectional survey study | US (n = 19,986) | 18–64 | Overall 4.9 | US 3.5 | 2.1 | |||
| Canada (n = 10,004) | Japan | ||||||||
| France (n = 9,964) | 2.2 for Germany to 8.1 for Italy | Canada 4.4 | |||||||
| Germany (n = 9,971) | |||||||||
| Italy (n = 9,897) | |||||||||
| Spain (n = 9,924) | |||||||||
| UK (n = 10,001) | |||||||||
| Japan (n= 10,911) | |||||||||
| Hwang et al. 2010 (255) | National health insurance register | 997,729 | All ages, mean ± SD | 1.2 | |||||
| 33.8 ± 20.70 | |||||||||
| Latvala et al. 2005 (32) | Military services assessment | 1.4 million | 18–19 | 1.2 | |||||
| 1.2 | |||||||||
| Werfel et al. 2018 (374) | Cross-sectional survey | 9,971 | 18–65 | 2.23 | |||||
| Zietze et al. 2018 (373) | Health insurance data | 3.3 million | 18+ | 1.6–1.9 | |||||
SD: standard deviation; GP: general practitioner.