Promoting Radon Testing Via Smartphone App: A Clinical Trial in a High Radon State

August 7, 2024 updated by: Soojung Kim, University of North Dakota
This research will compare (1) the effectiveness of a mobile radon-education app (vs. traditional brochures) and (2) that of the radon app with in-app reminders (vs. the radon app without in-app reminders and the no app use with postal reminders) to increase radon awareness and testing among North Dakotans. The prevalence of exceptionally high levels of residential radon in North Dakota (ND), coupled with public's poor understanding of this hazard, is a critical public health problem.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

138

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • North Dakota
      • Grand Forks, North Dakota, United States, 58202
        • University of North Dakota

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • The principal eligibility criterion is that participants own a smartphone.

Exclusion Criteria:

  • The principal exclusion criterion is previous testing for radon within the past two years.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Print brochures
Participants assigned to the print brochure group will receive three educational print brochures about radon published by EPA via postal mails for three months (one per each month).
Other: Print brochure
Participants will receive print brochures.
Experimental: The radon app
Participants assigned to the radon app group will be asked to use the radon app for three months where they will be exposed to mobile friendly educational content that is created from educational print brochures about radon published by EPA.
Other: The radon app
Participants will be asked to use the radon app.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Ordering a Free Radon Test Kit
Time Frame: Through the study completion - 3 months
The rate at which participants order a free radon test kit
Through the study completion - 3 months
Using the Radon Test Kit
Time Frame: Through the study completion - 3 months
The rate at which participants use the radon test kit to test their houses
Through the study completion - 3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change From Baseline Radon Knowledge at 3 Months
Time Frame: Change from baseline knowledge level to the completion of study at 3 months
Radon knowledge was measured by the number of accurate responses to 20 True-False statements in T1 (baseline) and T2 (at 3 months), as used in Kim, Brewster, and Schwartz (2020) (PMID: 32321499). The response options were: "true," "false," and "I don't know." Participants' responses to each statement were then re-coded to 1 ("correct") or 0 ("incorrect" or "I don't know"). After that, two radon knowledge index variables (continuous) were created by summing participants' responses to each statement in T1 (baseline) and T2 (at 3 months). Thus, two radon knowledge scores can range from 0-20 with higher scores indicating better knowledge.
Change from baseline knowledge level to the completion of study at 3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of North Dakota

Collaborators

National Institute of General Medical Sciences (NIGMS)

Investigators

  • Principal Investigator: Soojung Kim, University of North Dakota

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 1, 2021

Primary Completion (Actual)

February 15, 2023

Study Completion (Actual)

March 31, 2023

Study Registration Dates

First Submitted

July 6, 2021

First Submitted That Met QC Criteria

July 26, 2021

First Posted (Actual)

July 28, 2021

Study Record Updates

Last Update Posted (Actual)

August 9, 2024

Last Update Submitted That Met QC Criteria

August 7, 2024

Last Verified

August 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • CTR radon DaCCoTA
  • 5U54GM128729-05 (U.S. NIH Grant/Contract)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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