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Asthma and chemical hypersensitivity: prevalence, etiology, and age of onset

Environmental Studies, University of West Georgia, Pafford 128, Carrollton, Georgia, USA scaress{at}westga.edu

AC Steinemann

Civil and Environmental Engineering, and Public Affairs, University of Washington, Seattle, Washington

This study investigates asthma’s national prevalence and potential overlap with chemical hypersensitivity. It also examines asthma’s etiology, age of onset, and demographic characteristics. Data were collected from a geographically weighted random sample of the continental U.S. (1058 cases), in four seasonal cohorts (2005–2006). The study found that 12.9% of the sample report asthma, 11.6% report chemical hypersensitivity, and 31.4% of those with asthma report chemical hypersensitivity. Among asthmatics, 38% report irritation from scented products, 37.2% report health problems from air fresheners, and 13.6% report their asthma was caused by toxic exposure. Asthma cases affected each racial/ethic group in roughly the same proportion, with nearly 50% classified as childhood onset.

Key Words: asthma • chemical hypersensitivity • exposure • MCS • prevalence

Toxicology and Industrial Health, Vol. 25, No. 1, 71-78 (2009)
DOI: 10.1177/0748233709102713


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