[Maternal knowledge on breastfeeding and related factors].

The influence of maternal knowledge about breastfeeding on the initiation and duration of lactation has been described. The present study evaluated the maternal knowledge about breastfeeding and its relationship with prenatal and postnatal orientation and prevalence of breastfeeding at 3 months. A cross-sectional study was designed involving 100 mothers of first-born babies between 6 and 12 months old receiving medical care in the Hospital de Clínicas de Porto Alegre. The mothers answered a standardized questionnaire containing 14 questions to test knowledge on breastfeeding. The majority of mothers (62%) could not answer correctly half of the questions. Those more educated, who received prenatal orientation about breastfeeding and who had at least 5 prenatal visits had better knowledge. On the other hand, mothers who received postnatal orientation did not present a better knowledge. Prevalence of breastfeeding at 3 months was not related to maternal knowledge on the subject. The maternal knowledge about many aspects of breastfeeding was low. Postnatal orientation did not increase this knowledge. On the other hand, prenatal orientation had a positive impact on maternal knowledge about breastfeeding. Nonetheless this increase in knowledge was not sufficient to interfere with the prevalence of early interruption of breastfeeding.