Asthma Health Outcomes Project
Overviews of Surveyed Asthma ProgramsSeptember 2005
Domestic Programs: Washington (cont’d)
Seattle-King County Healthy Homes I
Seattle-King County Public Health Department
James Krieger, MD, MPH
The Seattle-King County Healthy Homes Project I, implemented in 1997, was a randomized controlled trial of a community health worker intervention to decrease exposure to indoor asthma triggers.
Community health workers provided in-home environmental assessments, an action plan based on the assessment, education, support for behavior change, and resources. Families received additional visits to encourage completion of the action plan and provide continued support and education. Participants were assigned to either a high-intensity group, receiving seven home visits and a full set of resources; or a low-intensity group, receiving a single home visit and limited resources.
The study population consisted of 274 low-income households with a child aged 4-12 years who had asthma. The study population was followed for one year. Evaluation results indicated that community health workers reduced asthma symptom days and urgent health services use while improving caregiver quality-of-life scores. Improvement was greater with the higher-intensity intervention.
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