Objectives: The purpose of this study was to explore the relationship of two modifiable factors (intention to breastfeed for 6 months and breastfeeding self-efficacy) with the duration of breastfeeding in primiparous women.
Findings: Analyzed by logistic regression in a single prediction model, stronger intention (odds ratio = 1.89) and higher levels of self-efficacy at 2 weeks postpartum (odds ratio = 1.04) were significantly (p < .05) associated with an increased probability of breastfeeding for 6 months.
Conclusions: The combined influence of higher intention and self-efficacy increased the likelihood of breastfeeding for the recommended 6 months. Interventions to reinforce both should be designed and evaluated.