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Mobile health evaluation methods: the Text4baby case study.

W Douglas Evans1, Lorien C Abroms, Ronald Poropatich

  • 1Department of Prevention and Community Health, The George Washington University, Washington, District of Columbia 20037, USA. wdevans@gwu.edu

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|May 3, 2012
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Summary

Mobile health (mHealth) programs show promise for health promotion, but rigorous evaluations are needed. This study tested a theoretical model for the Text4baby program, measuring behavioral mediators and outcomes.

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Area of Science:

  • Public Health
  • Health Behavior Theory
  • Mobile Health (mHealth) Interventions

Background:

  • Mobile health (mHealth) interventions are increasingly used in public health, yet their effectiveness in health promotion requires further evaluation.
  • Existing studies often reference behavioral theory but lack explicit testing of theoretical assumptions or demonstration of change mechanisms.
  • Robust evaluation models integrating theory and measurement of behavioral mediators are essential for mHealth effectiveness.

Purpose of the Study:

  • To evaluate the effectiveness of the Text4baby mobile health program in health promotion.
  • To test theoretical assumptions and demonstrate mechanisms of behavior change within an mHealth intervention.
  • To address the need for robust evaluation models incorporating theory and behavioral mediators in mHealth.

Main Methods:

  • Utilized a randomized controlled trial design comparing usual prenatal care plus Text4baby messaging to usual care alone.
  • Employed a theoretical model of behavior change to guide the evaluation.
  • Measured both behavioral mediators and health outcomes to assess intervention impact.

Main Results:

  • The Text4baby program, a text messaging service for prenatal care, was evaluated using a randomized controlled trial.
  • The evaluation incorporated a theoretical model of behavior change and measured key mediators.
  • Results are expected to inform the application of behavioral theory in mobile health programs.

Conclusions:

  • Mobile health evaluations face unique challenges due to the ubiquitous nature of mobile communication, necessitating innovative designs.
  • Natural experiments and location-based designs can enhance experimental control in mHealth research.
  • The Text4baby case example demonstrates the integration of theory and mediator measurement in mHealth program evaluation.