Tailored text messages to improve breastfeeding practices in Yangon, Myanmar: the M528 individually randomized
Myat Pan Hmone1, Mu Li2, Kingsley Emwinyore Agho3
1Sydney School of Public Health, The University of Sydney, Australia; "MPH" Research Consultancy, Yangon, Myanmar.
Background:
Text messages are a feasible delivery channel for breastfeeding promotion, but only a few articles have examined their effectiveness.
Objective:
To evaluate the impact of mobile phone text messages on breastfeeding practices.
Design:
We implemented a 2-arm, parallel, individually randomized controlled trial with 353 pregnant participants at the Central Women's Hospital, Yangon. The intervention group (n = 179) received breastfeeding-promotion text messages, and the control group (n = 174) received other maternal and child health care messages. The primary outcome was the exclusive breastfeeding rate at 1-6 mo postpartum. Secondary outcomes were other breastfeeding indicators, breastfeeding self-efficacy, and child morbidity. Using the intention-to-treat approach, the available outcome data were analyzed with generalized estimation equation Poisson regression models to estimate RR and 95% CIs, adjusted for within-person correlation and time, and tested for treatment group-by-time interactions.
Results:
Exclusive breastfeeding prevalence was significantly higher in the intervention than in the control group for the 6 follow-up visits combined (RR: 1.48; 95%CI: 1.35, 1.63; P < 0.001) and at each monthly follow-up visit. At 6 mo, exclusive breastfeeding was 43.4% in the intervention compared with 15.3% in the control group (RR: 2.74; 95%CI: 1.79, 4.19; P < 0.001). Also, at 6 mo, the intervention increased current breastfeeding (RR: 1.17; 95%CI: 1.07, 1.26; P < 0.001) and reduced bottle feeding (RR: 0.30; 95%CI: 0.17, 0.54; P < 0.001). Exclusive breastfeeding was progressively higher in the intervention group than in the control group at each follow-up (P for interaction < 0.001) and similarly for current breastfeeding. The intervention increased the mean breastfeeding self-efficacy score (adjusted mean difference 4.0; 95%CI: 1.36, 6.64; P = 0.030). Over the 6-month follow-up, the intervention significantly reduced diarrhea risk by 55% (RR: 0.45; 95%CI: 0.24, 0.82; P < 0.009).
Conclusions:
Regular, targeted text messages delivered to urban pregnant women and mothers via mobile phones significantly improve breastfeeding practices and reduce infant morbidity during the first 6 mo of life.
Trial Registration:
Australian New Zealand Clinical Trials Registry ACTRN12615000063516; https://anzctr.org.au/Trial/Registration/TrialReview.aspx?id=367704.
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