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Related Experiment Video

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The mobile assistance for regulating smoking (MARS) micro-randomized trial design protocol.

Inbal Nahum-Shani1, Lindsey N Potter2, Cho Y Lam2

  • 1Institute for Social Research, University of Michigan, Ann Arbor, MI, United States of America.

Contemporary Clinical Trials
|July 27, 2021
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Summary

This study tested prompts via a mobile app to help smokers use self-regulatory strategies to quit. It aims to improve engagement with interventions for smoking cessation.

Keywords:
EngagementMicro-randomized trial (MRT)Mobile health (mHealth)Self-regulatory strategiesSmoking cessation

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Area of Science:

  • Behavioral Science
  • Digital Health
  • Addiction Medicine

Background:

  • Smoking is a leading preventable cause of death.
  • Self-regulatory strategies can aid smoking cessation but face engagement barriers.
  • Mobile health (mHealth) interventions offer potential for real-time support.

Purpose of the Study:

  • To describe the protocol for the Mobile Assistance for Regulating Smoking (MARS) study.
  • To inform the development of an mHealth intervention for smoking cessation.
  • To investigate optimal prompting strategies for engaging smokers in self-regulatory behaviors.

Main Methods:

  • A 10-day Micro-Randomized Trial (MRT) with 112 smokers attempting to quit.
  • Participants received multiple daily randomized prompts via a mobile app.
  • Prompts varied in effort level: no prompt, low-effort strategies, or high-effort strategies.

Main Results:

  • The study protocol is detailed.
  • The goal is to determine if, what type, and when prompts increase engagement.
  • Results will guide development of personalized mHealth interventions.

Conclusions:

  • The MARS study protocol is designed to optimize engagement in smoking cessation.
  • Findings will support the creation of adaptive mHealth interventions.
  • This approach has potential to significantly enhance smoking cessation treatment reach and impact.