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Completed

NCT Number: NCT05338242

Monitoring Environmental Exposures and Behavioral Change

The goal of this study is to examine what effect real-time feedback on particulate matter (PM) air pollution levels has on risk recognition and behavior. The hypothesis is that real-time exposure feedback will change perceptions of risk and increase behaviors that avoid exposure to environmental risks. At least one representative household member in participating households will complete a questionnaire to fully understand environmental concerns, risk perceptions, and related behaviors. Half of the households will have PM monitors that continuously display real-time concentrations and an indication of the hazard level. The other participants will have the same device but it will only display the date and time. All participants will then be surveyed again: (a) immediately after sampling is complete (i.e., when the devices are removed from the home), (b) after 3 months and, (c) after 6 months. The goal of repeated surveys is to determine changing understanding of risks, how participating in research and/or receiving real-time exposure data may have changed participant behavior, and what concerns they continue to have. The questionnaire will include questions with categorical and/or quantitative answers (e.g., frequency of specific behaviors) so that changes in risk perception and behavior can be effectively analyzed.

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Key information

Conditions

Risk Reduction Behavior Environmental Exposure Health Behavior Health Risk Behaviors Risk Behavior, Health Risk Reduction Behavior

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Utah

Salt Lake City, Utah, 84108, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Participants must live in a household where at least one adult is a member of the N. Arapaho tribe who is a Primary Participant in the related exposure assessment study.

Treatment and study plan

Real-Time Exposure Feedback

Device

Participants will receive real-time exposure monitors that continuously display real-time air concentration information and a color-coded designation for the current risk level.

Primary outcomes

  1. Behaviors Related to Reduction in Exposure at Device Removal

    Time frame: From baseline to device removal, up to 3 months

    Outcomes will be measured by units on a scale that describe how often (frequency) behaviors related to reduction in particulate matter exposure occur. Four (4) behaviors were evaluated for frequency of daily (score=1), weekly (score=2), monthly (score=3), yearly (score=4), never (score=5), and not applicable (score=0). These were summed for a final score. The possible score range was from 0 (none of the behaviors were applicable) to 20 (none of the behaviors were ever done). For example, if all four behaviors were done weekly the final score would be 2+2+2+2 = 8. The outcome measure was obtained before and after sampling. The reported outcome measure here is the change in the combined score. Positive change indicates increased frequency of exposure-reduction behaviors.

  2. Behaviors Related to Reduction in Exposure 1-3 Months After Device Removal

    Time frame: From baseline to 1-3 months after removal of device, up to 6 months

    Outcomes will be measured by units on a scale that describe how often (frequency) behaviors related to reduction in particulate matter exposure occur. Four (4) behaviors were evaluated for frequency of daily (score=1), weekly (score=2), monthly (score=3), yearly (score=4), never (score=5), and not applicable (score=0). These were summed for a final score. The possible score range was from 0 (none of the behaviors were applicable) to 20 (none of the behaviors were ever done). For example, if all four behaviors were done weekly the final score would be 2+2+2+2 = 8. The outcome measure was obtained before and after sampling. The reported outcome measure here is the change in the combined score. Positive change indicates increased frequency of exposure-reduction behaviors.

  3. Behaviors Related to Reduction in Exposure 3-6 Months After Device Removal

    Time frame: From baseline to 3-6 months after removal of device, up to 9 months

    Outcomes will be measured by units on a scale that describe how often (frequency) behaviors related to reduction in particulate matter exposure occur. Four (4) behaviors were evaluated for frequency of daily (score=1), weekly (score=2), monthly (score=3), yearly (score=4), never (score=5), and not applicable (score=0). These were summed for a final score. The possible score range was from 0 (none of the behaviors were applicable) to 20 (none of the behaviors were ever done). For example, if all four behaviors were done weekly the final score would be 2+2+2+2 = 8. The outcome measure was obtained before and after sampling. The reported outcome measure here is the change in the combined score. Positive change indicates increased frequency of exposure-reduction behaviors.

Sponsors and collaborators

Lead sponsor

University of Utah

Other

Collaborators

  • National Institute of Environmental Health Sciences (NIEHS)

Registry information

Official study title

Environmental Exposures of the Northern Arapaho Tribe: An Exploratory Study

Important dates

Study start
2022
Primary completion
2024
Study completion
2024
First posted
Apr 21, 2022
Registry last updated
Aug 25, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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