Factors influencing the breastfeeding decisions of long-term breastfeeders.

Understanding determinants of mothers' decisions regarding long-term breastfeeding is important for the promotion of breastfeeding for up to 12 months postpartum and beyond. In this longitudinal infant feeding study, the theory of planned behavior was used to explain the intended and actual breastfeeding duration of 80 participants who were breastfeeding 9-month-old infants. Participants perceived less approval for breastfeeding the longer they breastfed. Perceived approval did not explain prenatal intended duration but strongly explained intended duration at 9 months postpartum. The amount of control mothers perceived they had over breastfeeding, however, explained both prenatal and 9-month breastfeeding duration intentions. Reasons for weaning between 9 and 12 months reflected the effects of perceived control but not of perceived approval. These results suggest the need for (1) interventions to increase the social acceptability of long-term breastfeeding and (2) ongoing breastfeeding guidance and support for long-term breastfeeders.