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. 2012 Mar 19;12:204. doi: 10.1186/1471-2458-12-204

Table 2.

Prevalence of clinical asthma, current smoking, symptoms and treatment by regions

% Among Clinical Asthma Population Reported Symptoms in Last 12 Months
Country Regions Prevalence (%)
of Clinical Asthma
% Current Smokers % Current Smokers Asthma Ever Treated % Wheezing

Africa 4.19 12.65 13.13 78.85 53.20

Americas 4.40 22.20 23.28 82.62 38.12

Eastern Mediterranean 2.99 19.41 17.52 85.52 54.45

Europe 5.28 39.25 35.85 90.24 49.64

South East Asia 3.39 30.23 34.11 78.00 57.86

Western Pacific 6.17 31.46 28.38 77.11 50.84

Global 4.46 23.46 23.33 81.91 49.69