Asthma Health Outcomes Project
Overviews of Surveyed Asthma ProgramsSeptember 2005
Domestic Programs: Washington (cont’d)
House Dust Mite Avoidance for Children with Asthma in Homes of Low-Income Families
Tamara Chinn, ARNP
"House Dust Mite Avoidance for Children with Asthma in Homes of Low-Income Families" was conducted in Seattle, WA, in 1995 by A.S.T.H.M.A., Inc., a non-profit clinical research organization. The purpose of the study was to determine whether specific house dust mite control measures could reduce exposure levels and asthma severity among children aged 6-16 from low-income inner city homes.
This double-blinded, randomized trial compared asthma progression over one year in children with asthma whose homes received standard environmental control intervention with those whose homes received aggressive intervention for dust mite elimination.
The standard intervention included general discussion of trigger control methods, vacuuming of pillows and mattresses, and the application of tannic acid placebo to the child's bedroom carpet. The aggressive intervention included distribution of mattress, boxspring, and pillow covers, laundry service delivery of clean bed linens, application of tannic acid to bedroom and living room carpets, and instruction to dust and vacuum weekly and avoid clutter.
The study concluded that the aggressive dust mite intervention decreased dust mite levels and improved bronchial hyper responsiveness. (Supported by National Institute of Allergy and Infectious Diseases grant #1 UO1 AI34578-01, AI/ES-34607, AI-20565)
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