Home Air Quality Impact for Adults With Asthma

Completed

Brief Summary: The purposes of this study are to determine the practicality of using home indoor air quality monitoring and a smartphone app to identify home air quality changes and how these changes affect adults with asthma.

Detailed Description: The aims of this feasibility study are: 1) determine the feasibility and usability of: (a) ecological momentary assessment (EMA) to assess self-report residential environmental exposures and asthma symptoms, (b) home monitoring of objective environmental exposures (total volatile organic compounds \[VOCs\], particulates \[PM2.5\]), and lung function (home spirometry); 2a) assess the frequency and degree of residential environmental exposures (e.g., disinfectants/cleaners, second-hand smoke) via (a) self-reported data, and (b) home monitoring objective measures, 2b) assess the level of asthma control as indicated by self-reported asthma symptoms and lung function; and 3) explore associations of self-reported and objective measures of residential environmental exposures with self-reported and objective measures of asthma control. Participants will receive an indoor air quality monitor and a home spirometer to measure VOCs, PM2.5, and forced expiratory volume percent predicted, respectively. EMA will be collected using a personal smartphone and EMA software platform. Participants' will be sent scheduled and random EMA notifications to assess asthma symptoms, environmental exposures, lung function, and mitigation strategies. After the 14-day data collection period, participants will respond to survey items related acceptability, appropriateness, and feasibility.

Recruitment & Eligibility

Inclusion Criteria

Adults who previously participated in the online Global Covid-19 and Asthma Study, indicated willingness to be contacted for future research, and reported high use of disinfectant/cleaning products since COVID-19 (≥5 per week).
Current Asthma Control Test (ACT) ≤19
Own a smartphone
Have a Wi-Fi/wireless internet connection in their home.

Exclusion Criteria

Primary Outcome Measures

Name	Time	Method
Episodes Per Day	Measured daily for 14 days	Number of episodes per day that the residential VOCs exceeded 333 ppb and/or PM2.5 exceeded 15 mg/m3, as measured by the Awair home air quality monitor
Home Spirometry Completed	Assessed daily for 14 days	Number of participants completing daily home spirometry over 14 days.

Secondary Outcome Measures

Name	Time	Method
Integration of Study Components	14 days	Participants were asked one survey item to assess if the various components of the study were well integrated. Response options ranged from 0=Strongly disagree to 4=Strongly agree. The score was multiplied by 25; scores could range from 0-100. A higher score indicated that the study components were well integrated.
Ecological Momentary Assessment (EMA) Surveys	14 days	Number of participants completing air quality triggered EMA surveys