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We analysed the WHS data to assess the global patterns of self-reported wheeze and doctor-diagnosed asthma, two commonly reported measures of respiratory health.<\/jats:p><jats:p>In total there were 308,218 participants with complete records, from 64 countries. The weighted mean age of the survey population was 43\u2005yrs. Global prevalence of current wheezing symptoms ranged from 2.4% in Vietnam to 24% in Brazil; the prevalence of diagnosed asthma ranged from 1.8% in Vietnam to 32.8% in Australia. Overall, the prevalence of symptoms and diagnosis showed a U-shaped pattern with the largest prevalence reported in low- and high-income countries. The smallest prevalence was consistently found in middle-income countries.<\/jats:p><jats:p>These WHS analyses have provided global prevalence estimates of wheeze and doctor-diagnosed asthma using data gathered simultaneously and consistently across six continents. These findings support the need for continued global respiratory illness surveillance for disease prevention, health policy and management.<\/jats:p>","DOI":"10.1183\/09031936.00027509","type":"journal-article","created":{"date-parts":[[2009,9,10]],"date-time":"2009-09-10T00:56:09Z","timestamp":1252544169000},"page":"279-286","source":"Crossref","is-referenced-by-count":86,"title":["National income, self-reported wheezing and asthma diagnosis from the World Health Survey"],"prefix":"10.1183","volume":"35","author":[{"given":"G.","family":"Sembajwe","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M.","family":"Cifuentes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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