Home Health and Air Pollution Study

NCT ID: NCT06030336

Last Updated: 2026-01-12

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 250 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-03-11
• Study Completion Date: 2026-10-30

Brief Summary

The goal of this clinical trial is to learn about whether indoor air quality will improve over time in homes where occupants receive personalized information about levels of health-relevant air pollutants that includes practical, budget-friendly, and culturally relevant recommendations on actions they can take to improve their home's air quality. The rationale for the investigators' approach is that a rigorous intervention study design will generate robust evidence on the value of the in-home environmental data. Participating homes in both the intervention and control groups will receive three, one-week Home Health Box deployments spaced six weeks apart. After each of the first two deployments, homes in the intervention group will receive a Home Health Report with personalized information about in-home levels of health-relevant air pollutants and cost-sensitive recommendations on actions occupants can take to improve their home's air quality. The investigators will (a) investigate whether and how air quality changes over time in control and intervention homes and (b) survey intervention households on the utility of the Home Health Reports.

Detailed Description

Study participation will involve: (i) an intake survey; (ii) random assignment to the intervention or control group (this will be done in blocks of 4 households, to maintain balance in the intervention and control groups over the course of study enrollment); (iii) three in-home air quality monitoring deployments with the Home Health Box; (iv) three Home Health Reports (for those randomly assigned to the intervention group) generated from data the Home Health Box provides; and (v) a follow-up survey in a subset of intervention households to investigate the value and utility of the Home Health Report. The Home Health Report will provide quantitative information about health-relevant pollutants (fine particulate matter, carbon dioxide, nitrogen dioxide, and volatile organic compounds), their levels compared to health-based guidelines, their potential sources, as well as no- and low-cost actions occupants could take to improve indoor air quality. The Home Health Report will be designed to maximize utility to residents. Each Home Health Report will be provided within approximately three to four weeks after the corresponding Home Health Box has been received from the household. The second Home Health Box deployment will occur within several weeks to one month of the household receiving their first Home Health Report. The third and final Home Health Box deployment will occur within several weeks to one month of the household receiving their second Home Health. Households in the control group will also receive three Home Health Box deployments spaced approximately four to eight weeks apart, but will not receive Home Health Reports after the first and second deployments. At the close of their participation in the study, households in both the intervention and control groups will receive a comprehensive Home Health Report, including results from all three Home Health Box deployments and recommended actions occupants could take to improve their home air quality. In total, participation in this study will last between four to six months.

Conditions

Indoor Air Quality

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Intervention

The Home Health Report will provide quantitative information about health-relevant pollutants (fine particulate matter, carbon dioxide, nitrogen dioxide, and volatile organic compounds), their levels compared to health-based guidelines, their potential sources, as well as no- and low-cost actions occupants could take to improve indoor air quality. The Home Health Report will be designed to maximize utility to residents. Each Home Health Report will be provided after the corresponding Home Health Box deployment. The second Home Health Box deployment will occur after the household receiving their first Home Health Report. The third and final Home Health Box deployment will occur within one month of the household receiving their second Home Health Report.

Group Type: EXPERIMENTAL

Home Health Report

Intervention Type: BEHAVIORAL

The Home Health Report has been described in the intervention arm description.

Control

Households in the control group will also receive three Home Health deployments spaced over several months, but will not receive Home Health Reports after the first and second deployments. At the close of their participation in the study, households in the control group will receive a comprehensive Home Health Report, including results from all three Home Health Box deployments and recommended actions occupants could take to improve their home air quality.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

Home Health Report

The Home Health Report has been described in the intervention arm description.

Intervention Type: BEHAVIORAL

Eligibility Criteria

Inclusion Criteria

• living in home for at least next six months

Exclusion Criteria

• if participants will not be living in the same household within six months of enrollment

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University of Colorado, Denver

OTHER

Sponsor Role: collaborator

Access Sensor Technologies, LLC

UNKNOWN

Sponsor Role: collaborator

Colorado State University

OTHER

Sponsor Role: lead

Responsible Party

Ellison Carter

Associate Professor

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Ellison Carter, PhD

Role: PRINCIPAL_INVESTIGATOR

Colorado State University

Locations

UCHealth

Aurora, Colorado, United States

Colorado State University

Fort Collins, Colorado, United States

Countries

United States

References

Tryner J, Phillips M, Quinn C, Neymark G, Wilson A, Jathar SH, Carter E, Volckens J. Design and Testing of a Low-Cost Sensor and Sampling Platform for Indoor Air Quality. Build Environ. 2021 Dec;206:108398. doi: 10.1016/j.buildenv.2021.108398. Epub 2021 Sep 28.

Reference Type: BACKGROUND

PMID: 34764540 (View on PubMed)

Other Identifiers

23 - 0817

Identifier Type: -

Identifier Source: org_study_id