Parental Cohabitation and Breastfeeding Outcomes Among United States Adolescent Mothers.

Abstract Background: Adolescent mothers in the United States experience disproportionately lower rates of breastfeeding compared to older mothers. Evidence suggests that paternal support helps improve breastfeeding outcomes; however, support is difficult to quantify. Parental cohabitation is easy to identify and could be used to quantify paternal support. Research Aim: Our study is to investigate the association between parental cohabitation and breastfeeding initiation and duration among US adolescent mothers. Materials and Methods: Data from the 2011-2017 National Survey of Family Growth were used. Our study sample included primipara, adolescent mothers (aged 15-19 years) who gave birth to a singleton ( n  = 1,867). Multivariate logistic regression and Cox Proportional Hazards models were used to analyze the relationship between cohabitation and breastfeeding initiation and duration, respectively. All models were subsequently stratified by race/ethnicity due to evidence of effect modification. Results: After adjusting for all a priori confounders, cohabiting with the infant's father at birth was associated with increased odds of breastfeeding initiation compared to noncohabiting adolescent mothers (odds ratio [OR]: 1.5, 95% confidence interval [CI]: 1.08-2.16). After stratifying by race/ethnicity, both Hispanic and non-Hispanic white adolescent mothers were more likely to initiate breastfeeding if cohabiting with the infant's father (OR Hispanic : 1.9, 95% CI: 1.10-3.35; OR Non-Hispanic white : 1.7, 95% CI: 1.05-2.87). We found no evidence of an association between parental cohabitation and breastfeeding duration. Conclusions: Our study found evidence that cohabitation status at birth increases the odds of breastfeeding initiation in adolescent mothers. Practitioners should consider cohabitation status when working with adolescent mothers.