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Table 3 Summary of prevalence of asthma reported in the literature

From: Global asthma prevalence in adults: findings from the cross-sectional world health survey

Authors Data Collection
Period
Study & Survey Used Definitions of Asthma Sample Size Countries Included Age Groups Findings of Asthma Prevalence
ECRHS (1996)5 1988-1994 ECRHS An asthma attack in the last
12 months or currently taking asthma medication
137,619 12 20-44 Ranged from 2.0% in Estonia to 11.9% in Australia with a median of 4.5%
ISAAC Steering Committee (1998)3 1992-1996 ISAAC Phase 1 Self-reported ever had asthma 721,601 56 6-7 and 13-14 11.3% in children aged 13 14 years and 10.2% in children aged 6-7 years
ISAAC Steering Committee (1998)6 1992-1996 ISAAC Phase 1 Wheezing or whistling in the chest in the last 12 months 463,801 55 13-14 Ranged from 1.6% in Indonesia to 36.8% in the UK
Masoli et al. (2004)4 1988-1996 ISAAC and ECRHS Various depending on the survey and country Not
reported
76 13-14 and 20-44 Ranged from 0.7% in Macau to 18.4% in Scotland
Lai et al. (2009)18 2000-2003 ISAAC Phase 3 Wheeze in the past 12 months 1,187,496 98 6-7 and 13-14 14.1% in children 13-14 years and 11.5% in children 6-7 years
Sembajwe et al.
(2010)13
2002-2003 WHS Doctor diagnosis 308,218 64 18-99 Ranged from 1.8% in Vietnam to 32.8% in Australia with an overall 6.0%
To et al. (2011)
(Current study)
2002-2003 WHS Doctor diagnosis, clinical and symptoms of asthma 177,496 70 18-45 4.3% doctor diagnosed asthma, 4.5% clinical asthma and 14.4% symptoms of asthma