Table 4.
Distribution of studies (n=159) reporting on the prevalence of psoriasis according to regions
| Region | No of studies* | 
|---|---|
| Western Europe | 97 | 
| High income North America | 20 | 
| East Asia | 16 | 
| North Africa and the Middle East | 18 | 
| Central Europe | 6 | 
| Tropical Latin America | 5 | 
| High income Asia Pacific | 4 | 
| Australasia | 3 | 
| Eastern Europe | 4 | 
| South Asia | 3 | 
| South East Asia | 1 | 
| Eastern sub-Saharan Africa | 1 | 
The number of studies is higher than 159 because some studies reported data on many countries belonging to different regions.