Actively Recruiting
Action Towards Health Equity and Improved Air Quality in the Duwamish Valley: A Multilevel Asthma Intervention Using Box Fans and Filters in Children
Led by University of Washington · Updated on 2024-08-13
80
Participants Needed
1
Research Sites
N/A
Total Duration
On this page
Sponsors
U
University of Washington
Lead Sponsor
N
National Institute of Environmental Health Sciences (NIEHS)
Collaborating Sponsor
AI-Summary
What this Trial Is About
Researchers are evaluating whether using box fans with special filters can reduce asthma symptoms and improve indoor air quality in children aged 6 to 17 years living in the Duwamish Valley, Seattle. The study compares children using fans with high-quality MERV 13 filters to those with sham filters that only block large particles. They aim to see if air quality and lung function, measured by forced expiratory volume in the first second (FEV1), improve with the use of these filters. Participants receive either a box fan fitted with a MERV 13 filter that traps small particles or a sham filter with a MERV rating of 1, which filters only large particles like lint and hair. The study runs for six weeks, including two weeks before fan installation and four weeks with the fans running at home. There is also a follow-up visit six months later to assess longer-term effects. During the study, children will complete questionnaires, use a peak flow meter to monitor lung function twice daily, and have an air monitor placed in their homes to track air quality. Asthma symptoms are tracked weekly for six weeks, with further assessments of quality of life, medication use, and healthcare visits at baseline, after six weeks, and at six months. This study helps understand how improving indoor air quality might support asthma management over time.
CONDITIONS
Brief Title
Action Towards Health Equity and Improved Air Quality in the Duwamish Valley: A Multilevel Asthma Intervention
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age between 6 and 17 years
- Physician-diagnosed asthma that is poorly controlled, defined as more than four days with asthma symptoms in the past two weeks, use of rescue medication more than four days in the past two weeks, or healthcare use for asthma in the past year
- Living in the Georgetown or South Park neighborhoods of Seattle
You will not qualify if you...
- Children with unstable housing or shared custody arrangements
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Your Study Journey
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - 2 weeks
Participants monitor asthma symptoms and lung function before receiving box fans.
Weekly symptom tracking and twice daily lung function measurements
Duration - 4 weeks
Participants use a box fan with either a MERV 13 filter or a sham filter in their home to assess impact on asthma.
Weekly symptom tracking and twice daily lung function measurements
Duration - 1 day (6-month visit)
Participants are assessed for asthma symptoms, quality of life, and lung function six months after treatment.
1 follow-up visit (in-person) with 3 days of lung function measurements prior
Trial Site Locations
Total: 1 location
1
Duwamish River Community Coaltion
Seattle, Washington, United States, 98108
Actively Recruiting
Research Team
A
Anjum Hajat, PhD, MPH
How is the study designed?
Study Type
INTERVENTIONAL
Masking
DOUBLE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
PREVENTION
Number of Arms
2
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