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

Not Applicable

Completed

• Conditions: Lung Cancer
• Interventions: Other: The radon app; Other: Print brochure

• Registration Number: NCT04980521
• Lead Sponsor: University of North Dakota

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2021-07-06
• Study First Submitted QC: 2021-07-26
• Study First Posted: 2021-07-28
• Study Start: 2021-10-01
• Primary Completion: 2023-02-15
• Study Completion: 2023-03-31
• Results First Submitted: 2024-05-14
• Status Verified: 2024-08
• Results First Submitted QC: 2024-08-07
• Last Update Submitted: 2024-08-07
• Results First Posted: 2024-08-09
• Last Update Posted: 2024-08-09

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 138

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 & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
The radon app	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.
Print brochures	Print brochure	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).

Primary Outcome Measures

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

Secondary Outcome Measures

Name	Time	Method
Change From Baseline Radon Knowledge at 3 Months	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.

Trial Locations

Locations (1)

University of North Dakota; 🇺🇸 Grand Forks, North Dakota, United States