Effectiveness of a Breastfeeding Program for Mothers Returning to Work in Japan: a quasi-experiment study
Abstract Background: Maternal employment has been described as a barrier to breastfeeding in many countries. In Japan, many mothers quit breastfeeding after returning to work because they do not know how to continue breastfeeding. The primary objective of this study was to investigate the effectiveness of a breastfeeding support program for mothers in Japan by comparing the breastfeeding continuation rate with a control group at 3 months after returning to work. The second objective was to explore the effectiveness of a pamphlet containing information to help mothers returning to work continue breastfeeding by comparing breastfeeding continuation rates in women given the pamphlet and a control group.Methods: This was a quasi-experimental design study with a program group (n=48), pamphlet group (n=46) and control group (n=47) that took place from February 2017 to August 2018. Participants in the program and pamphlet groups were women who planned to return to work within 4–12 months after giving birth, while the control group included women who had been back at work for at least 3 months. The program involved a 90-min breastfeeding class, a pamphlet, a newsletter, and email consultation. The pamphlet group was sent only the pamphlet, while the control group received no intervention. The outcome was breastfeeding continuation rate at 3 months after returning to work.Results: The breastfeeding continuation rate 3 months after returning to work was significantly higher in the program group than in the control group (79.2% vs. 51.1%, p=0.004). After adjusting for background factors, the program intervention had an effect on breastfeeding rates (adjusted odds ratio=4.68, 95% confidence interval: 1.57–13.96; p=0.006). However, comparison of the pamphlet and control groups revealed no significant differences in breastfeeding continuation rates at 3 months after returning to work (69.6% vs. 51.1%, p=0.07).Conclusions: Program intervention resulted in a significant increase in breastfeeding continuation rates 3 months after returning to work. Randomized controlled trials are needed to make this program applicable in practice. Pamphlet intervention resulted in no significant difference, but the proportion of breastfeeding continuation was high; therefore, further study is necessary after examining the contents of the pamphlet.