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Related Experiment Video

Updated: Jun 30, 2026

Moderate Prenatal Alcohol Exposure and Quantification of Social Behavior in Adult Rats
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Text Messaging Intervention for Postpartum Alcohol Use: Micro-Randomized Trial Supports Feasibility, Acceptability,

Sarah Dauber1, Janardan Devkota2, Alexa Beacham1

  • 1Partnership to End Addiction, New York, New York.

Journal of Studies on Alcohol and Drugs
|October 8, 2025
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Summary

This pilot study found micro-randomized trials (MRT) feasible for postpartum mothers. Maternal-focused texts were better received, and any message improved drinking self-efficacy (DSE) compared to no message.

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Area of Science:

  • Reproductive Health
  • Behavioral Science
  • Digital Health Interventions

Background:

  • Postpartum women with at-risk alcohol use require effective interventions.
  • Text messaging interventions show promise but need tailoring for this population.
  • Micro-randomized trial (MRT) designs offer a feasible approach for adaptive interventions.

Purpose of the Study:

  • Evaluate the feasibility and acceptability of an MRT design in postpartum mothers.
  • Compare the preliminary impacts of drinking-focused versus maternal-focused text messages.
  • Inform the development of a tailored, just-in-time adaptive text messaging intervention.

Main Methods:

  • A 28-day pilot micro-randomized trial (MRT) involving 65 postpartum mothers.
  • Ecological momentary assessment (EMA) surveys collected multiple times daily.
  • Randomization to receive maternal-focused, drinking-focused, or no text message after surveys.

Main Results:

  • High compliance (>70%) with surveys, indicating low burden and feasibility.
  • Maternal-focused messages were rated more helpful and evoked more positive feelings than drinking-focused messages.
  • Intervention messages increased drinking self-efficacy (DSE) compared to no message; maternal message effects decreased over time.

Conclusions:

  • The MRT design is feasible and acceptable for postpartum mothers with at-risk drinking.
  • Findings support tailoring text message content for this population.
  • Results inform the development of adaptive text messaging interventions for postpartum alcohol use.