Nicole M Hackman1, Natasha Alligood-Percoco2, Ashley Martin3, Junjia Zhu4, Kristen H Kjerulff2,4. 1. 1 Department of Pediatrics, Penn State College of Medicine , Hershey, Pennsylvania. 2. 2 Department of Obstetrics and Gynecology, Penn State College of Medicine , Hershey, Pennsylvania. 3. 3 Penn State College of Medicine , Hershey, Pennsylvania. 4. 4 Department of Public Health Sciences, Penn State College of Medicine , Hershey, Pennsylvania.
Abstract
OBJECTIVES: The primary objective was to determine the rate of breastfeeding by gestational age reported by new mothers 1 month postpartum, with particular focus on early term newborns (37-38(6)/7 weeks). MATERIALS AND METHODS: Three thousand six primiparous women aged 18-36 years were interviewed during their third trimester and again 1 month postpartum. Logistic regression analysis was used to model the association between gestational age and breastfeeding 1 month postpartum among those who reported that they planned to breastfeed, controlling for potentially confounding variables. RESULTS: Two thousand seven hundred seventy-two women planned to breastfeed (92.2%), among whom 116 (4.2%) delivered late preterm (34-36(6)/7 weeks), 519 (18.7%) early term (37-38(6)/7 weeks), and 2,137 (77.1%) term or postterm (39+ weeks). Among those who delivered late preterm, 63.8% were breastfeeding 1 month postpartum, early term 72.6%, and term or postterm 76.5%. This relationship was verified by a multivariate logistic regression analysis; late preterm newborns were significantly less likely to be breastfeeding 1 month postpartum than the term or postterm newborns (odds ratio [OR] 0.44; 95% confidence interval [CI] 0.28-0.69; p ≤ 0.0001), as were early term newborns (OR 0.77; 95% CI 0.60-0.99; p = 0.038). CONCLUSIONS: In this large prospective study of first-time mothers and newborns, gestational age was significantly associated with breastfeeding 1 month postpartum; highlighting late preterm and early term infants as populations at risk for shortened breastfeeding duration and the need to create specific breastfeeding support and education.
OBJECTIVES: The primary objective was to determine the rate of breastfeeding by gestational age reported by new mothers 1 month postpartum, with particular focus on early term newborns (37-38(6)/7 weeks). MATERIALS AND METHODS: Three thousand six primiparous women aged 18-36 years were interviewed during their third trimester and again 1 month postpartum. Logistic regression analysis was used to model the association between gestational age and breastfeeding 1 month postpartum among those who reported that they planned to breastfeed, controlling for potentially confounding variables. RESULTS: Two thousand seven hundred seventy-two women planned to breastfeed (92.2%), among whom 116 (4.2%) delivered late preterm (34-36(6)/7 weeks), 519 (18.7%) early term (37-38(6)/7 weeks), and 2,137 (77.1%) term or postterm (39+ weeks). Among those who delivered late preterm, 63.8% were breastfeeding 1 month postpartum, early term 72.6%, and term or postterm 76.5%. This relationship was verified by a multivariate logistic regression analysis; late preterm newborns were significantly less likely to be breastfeeding 1 month postpartum than the term or postterm newborns (odds ratio [OR] 0.44; 95% confidence interval [CI] 0.28-0.69; p ≤ 0.0001), as were early term newborns (OR 0.77; 95% CI 0.60-0.99; p = 0.038). CONCLUSIONS: In this large prospective study of first-time mothers and newborns, gestational age was significantly associated with breastfeeding 1 month postpartum; highlighting late preterm and early term infants as populations at risk for shortened breastfeeding duration and the need to create specific breastfeeding support and education.
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