Using Teach Back to Improve Postpartum Maternal-infant Health Among Women With Limited Maternal Health Literacy

This is a randomized controlled trial study with two arms teach-back group vs. controlled group. We decided the assignment of the women to each group by tossing a coin (heads for the teach-back group and tails for the control group). The women were informed about receiving education during the trial, but they were not aware of the forms and techniques used in the trial, nor were they aware if they were assigned to the teach-back group or control group. For the first two education sessions, the women were grouped based on the time of their recruitment, i.e., being the first recruited, being the first grouped and being the first to receive education. The educators were numbered from 1 to 8 according to their work shifts and were assigned to education sessions in sequence and cycle. For the third education session, the educators were assigned to contact women based on the matching of their work schedules. The women could be grouped with different peers and met different educators during the trial. In this way, we could reduce the possible influence of educators and group peers on the results of the trial.