Does extending the duration of legislated paid maternity leave improve breastfeeding practices? Evidence from 38 low-income and middle-income countries

Introduction Among all barriers to breastfeeding, the need to work has been cited as one of the top reasons for not breastfeeding overall and for early weaning among mothers who seek to breastfeed. We aimed to examine whether extending the duration of paid maternity leave available to new mothers affected early initiation of breastfeeding, exclusive breastfeeding under 6 months and breastfeeding duration in low-income and middle-income countries (LMICs). Methods We merged longitudinal data measuring national maternity leave policies with information on breasffeeding related to 992 419 live births occurring between 1996 and 2014 in 38 LMICs that participated in the Demographic and Health Surveys. We used a difference-in-differences approach to compare changes in the prevalence of early initiation and exclusive breastfeeding, as well as the duration of breasffeeding, among treated countries that lengthened their paid maternity leave policy between 1995 and 2013 versus control countries that did not. Regression models included country and year fixed effects, as well as measured individual-level, household-level and country-level covariates. All models incorporated robust SEs and respondent-level sampling weights. Results A 1-month increase in the legislated duration of paid maternity leave was associated with a 7.4 percentage point increase (95% CI 3.2 to 11.7) in the prevalence of early initiation of breasffeeding, a 5.9 percentage point increase (95% CI 2.0 to 9.8) in the prevalence of exclusive breastfeeding and a 2.2- month increase (95% CI 1.1 to 3.4) in breasffeeding duration. Conclusion Extending the duration of legislated paid maternity leave appears to promote breasffeeding practices in LMICs. Our findings suggest a potential mechanism to reduce barriers to breasffeeding for working mothers.