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Educational Intervention for the Promotion of Knowledge and Preventive Health Behaviors Related to Personal Air Pollution Exposure, The Air Study

Reducing PM2.5 Exposure and Lung Cancer Risk Using Spatial Data Science (The Air Study)

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04922697
Enrollment
25
Registered
2021-06-11
Start date
2021-09-15
Completion date
2022-03-05
Last updated
2022-07-21

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lung Carcinoma

Brief summary

This clinical trial will conduct an educational intervention to promote knowledge of and preventive health behaviors related to personal air pollution exposure. Air pollution is n ubiquitous environmental exposure that is associated with harmful health effects including lung cancer. The educational intervention is comprised of 2 educational videos that include information regarding air pollution, health effects, and personal preventive health behaviors to reduce air pollution exposure and the use of a wearable air pollution sensor. The knowledge gained from this study may inform future research that will be designed to promote awareness of air pollution and its health effects.

Detailed description

OUTLINE: Participants watch 2 educational videos during week 3 regarding air pollution, health effects, and personal preventive health behaviors to reduce air pollution exposure. Participants complete questionnaires at weeks 1 and 5.

Interventions

OTHEREducational Intervention

Watch educational videos and use wearable air pollution sensor

OTHERQuestionnaire Administration

Complete questionnaires

Sponsors

Prevent Cancer Foundation
CollaboratorOTHER
Fred Hutchinson Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Adults 18 years or older: The evidence for personal strategies to reduce air pollution exposure has been focused on adults * Live in Seattle, WA: The study is designed to focus on Seattle, WA such as using EnviroFlash alerts * Own a smartphone: The participant requires a smartphone to setup the Flow app for the air pollution sensor * Not traveling in the near-term: The study is designed to assess air pollution patterns in the local Seattle area * Leave your home for at least 7 hours per week: Participants will use a wearable air pollution sensor to measure air pollutant levels from indoor and outdoor sources

Design outcomes

Primary

MeasureTime frameDescription
Changes in knowledge regarding air pollutionAt baseline and week 5Will calculate the proportion of the items that were answered correctly. McNemar's tests will be used to calculate differences in the proportion of participants answering air pollution knowledge items correctly at baseline and at week 5.
Changes in air pollution preventive health behaviorsAt baseline and week 5Will calculate summary scores for air pollution preventive health behaviors and paired t-test to determine intervention effectiveness at baseline and at week 5.

Secondary

MeasureTime frameDescription
Changes in perceived susceptibilityAt baseline and week 5Summary scores for perceived susceptibility (guided by the Health Belief Model) will be calculated from participant questionnaire responses by summing the scores across the relevant scale. Paired t-tests will determine changes in perceived susceptibility at baseline and week 5.
Changes in perceived severityAt baseline and week 5Summary scores for perceived severity (guided by the Health Belief Model) will be calculated from participant questionnaire responses by summing the scores across the relevant scale. Paired t-tests will determine changes in perceived severity at baseline and week 5.
Changes in self-efficacyAt baseline and week 5Summary scores for self-efficacy (guided by the Health Belief Model) will be calculated from participant questionnaire responses by summing the scores across the relevant scale. Paired t-tests will determine changes in self-efficacy at baseline and week 5.
Changes in cues to actionAt baseline and week 5Will calculate frequencies for each cue to action (guided by the Health Belief Model). McNemar's tests will be used to calculate differences in the proportion of participants regarding each cue to action at baseline and week 5.
Changes in air pollutant levels measured using the Flow 2 personal air quality sensorAt baseline and week 2 vs. week 4 and week 5Paired t-tests will determine changes in air pollutant levels at baseline and week 2 vs. week 4 and week 5.
Changes in perceived barriersAt baseline and week 5Summary scores for perceived barriers (guided by the Health Belief Model) will be calculated from participant questionnaire responses by summing the scores across the relevant scale. Paired t-tests will determine changes in perceived barriers at baseline and week 5.
Intervention feasibility (acceptability)At week 5Will report descriptive statistics for intervention acceptability based on responses to the relevant questionnaire items at week 5.
Intervention feasibility (demand)At week 5Will report descriptive statistics for intervention demand based on responses to the relevant questionnaire items at week 5.
Intervention feasibility (uptake, sensor upload completion)At baseline through week 5Will report descriptive statistics the proportion of participants completing sensor uploads.
Intervention feasibility (uptake, educational video viewing)At week 3Will report descriptive statistics for the proportion of viewing educational videos at week 3.
Intervention feasibility (uptake, questionnaire completion)At baseline and week 5Will report descriptive statistics for the proportion of completing the questionnaires at baseline and week 5.
Intervention feasibility (accessibility)At week 5Will report descriptive statistics for intervention accessibility based on responses to the relevant questionnaire items at week 5.
Changes in perceived benefitsAt baseline and week 5Summary scores for perceived benefits (guided by the Health Belief Model) will be calculated from participant questionnaire responses by summing the scores across the relevant scale. Paired t-tests will determine changes in perceived benefits at baseline and week 5.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026