Action Towards Health Equity and Improved Air Quality in the Duwamish Valley: A Multilevel Asthma Intervention
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 80
- 试验地点
- 2
- 主要终点
- FEV1
研究概览
简要总结
The goal of this randomized control trial is to learn if box fans and filters can reduce asthma symptoms and improve indoor air quality in children ages 6 - 17 years old with asthma living in the Duwamish Valley, Seattle, Washington. The main question it aims to answer are:
- Do box fans with filters improve asthma symptoms?
- Do box fans with filters improve an objective measure used to monitor lung function known as forced expiratory volume during the first second (FEV1)? Researchers will compare children living in households with high quality filters to those in households with sham filters to see if air quality and asthma symptoms improve.
Participants will
- fill out several questionnaires
- monitor their lung function with a peak flow meter
- place an air monitor in their homes to monitor indoor air quality
- run the box fan when they are at home
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Double (Participant, Investigator)
入排标准
- 年龄范围
- 6 Years 至 17 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •age (6-17 years)
- •poorly controlled physician diagnosed asthma defined as more than four days with asthma symptoms in the past two weeks, use of asthma rescue medication for more than four days in the past two weeks, or health care utilization due to asthma in the past year (hospitalization, emergency room visit, or unscheduled clinic visit)
- •living in Georgetown and South Park neighborhoods of Seattle
排除标准
- •children with unstable housing or shared custody arrangements
结局指标
主要结局
FEV1
时间窗: FEV1 measures will be taken daily, once in the morning and once at night for the six week study time frame. Prior to the six month follow up we will ask participants to take three consecutive days of FEV1 measurements, for an additional 6 measures
FEV1 is captured with a digital peak flow meter.
Asthma symptoms
时间窗: ACQ will be measured weekly for 6 consecutive weeks, two pre-intervention weeks (before box fans have been given to participant) and four weeks while fans are being used in the home. Symptoms will also be assessed at the six month follow-up visit.
Symptoms are evaluated with the seven-item asthma control questionnaire (ACQ), a validated tool used in children.
次要结局
- Use of rescue medications(ACQ will be measured weekly for 6 consecutive weeks, two pre-intervention weeks (before box fans have been given to participant) and four weeks while fans are being used in the home. Symptoms will also be assessed at the six month follow-up visit.)
- Asthma quality of life(Will be evaluated at baseline (visit 1), after 6 weeks (visit 3) and at 6 month follow up (visit 4))
- Health care utilization in the past month(Will be evaluated at baseline (visit 1), after 6 weeks (visit 3) and at 6 month follow up (visit 4))
研究者
Anjum Hajat
Associate Professor: School of Public Health
University of Washington