Asthma diagnosis rates in children increased very significantly in the past 20 years. The search for environmental cause has been intense. But how big could the environmental proportion of new cases be?
Evidence from:
G Koeppen-Schomerus et al. Archives of Diseases in Childhood. November (2001), Vol. 85 #5 p 398.
In 1999 Genetics accounted for 70% of asthma diagnoses. It would be interesting and useful to know if the same proportion was still found now.
If an environmental cause of asthma diagnosis inflation is found then the maximum proportion would be 30% of cases.
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