International Journal of Epidemiology 2002;31:488-489
© International Epidemiological Association 2002
Cardiovascular Disease |
Commentary: Does the hygiene hypothesis' provide an explanation for the relatively low prevalence of asthma in Bangladesh?
Department of Environment and Health, Institute of Social and Preventive Medicine, University of Basel, Steinengraben 49, 4051 Basel, Switzerland.
The prevalence of childhood asthma in Bangladesh is much lower than in developed countries, but similar to those of other countries in this region like Pakistan and India.1 These differences in asthma prevalence may be attributed to a western lifestyle, which among other factors is characterized by a higher level of hygiene, lower rates of infections, and small family size. Among the Bangladeshi children, those living in small families (three or
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