Breastfeeding Duration and Exclusivity Among Early-Term and Full-Term Infants: A Cohort Study

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0
Tipo de produção
article
Data de publicação
2023
DOI
Scopus
Web of Science
PubMed
Título da Revista
ISSN da Revista
Título do Volume
Editora
ELSEVIER SCIENCE INC
Autores
SILVA, Michele Galvao da
MATTIELLO, Rita
PONTE, Bianca Del
SILVEIRA, Mariangela F.
BERTOLDI, Andrea D.
DOMINGUES, Marlos
BARROS, Fernando
SANTOS, Ina S.
Citação
CURRENT DEVELOPMENTS IN NUTRITION, v.7, n.3, article ID 100050, 6p, 2023
Projetos de Pesquisa
Unidades Organizacionais
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Resumo
Background: As compared to full-term infants (39-41 weeks of gestation), early-term infants (37-38 wk) are at increased risk of adverse outcomes, including shorter exclusive breastfeeding (EB) duration and continued breastfeeding.Objectives: To compare early-term with full-and late-term infants regarding the prevalence of EB at 3 mo and any breastfeeding at 12 mo. Methods: Data sets from two population-based birth cohorts conducted in the city of Pelotas, Brazil, were combined. Only term infants (37 0/7 through 41 6/7 weeks of gestation) were included in the analyses. Early-term infants (37 0/7 through 38 6/7 wk) were compared to the remaining term infants (39 0/7 through 41 6/7 wk). Information on breastfeeding was gathered through maternal interviews at the 3-mo and 12-mo follow-ups. The prevalence of EB at 3 mo and any breastfeeding at 12 mo with 95% CIs were calculated. Crude and adjusted prevalence ratios (PRs) were obtained through Poisson regression.Results: A total of 6395 infants with information on gestational age and EB at 3 mo and 6401 infants with information on gestational age and any breastfeeding at 12 mo were analyzed. There was no difference between early-term infants and the remaining term infants regarding the prevalence of EB at 3 mo (29.2% and 27.9%, respectively) (P = 0.248). Prevalence of any breastfeeding at 12 mo was lower in early-term infants than among those born between 39 0/7 and 41 6/7 weeks of gestation (38.2% compared with 42.4%) (P = 0.001). In the adjusted analysis, the PR for any breastfeeding at 12 mo was 15% lower in the early-term group than in the remaining term infants (PR = 0.85; 95% CI: 0.76-0.95) (P = 0.004).Conclusions: The prevalence of EB at 3 mo was similar among term infants. Nonetheless, in comparison with the remaining infants born at term, early-term infants were at increased risk of having been weaned before reaching 12 mo of age. Curr Dev Nutr 2023;xx:xx.
Palavras-chave
breastfeeding, gestational age, risk factors, Infant, Premature, Cohort studies
URI
https://observatorio.fm.usp.br/handle/OPI/54003
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Coleções
Artigos e Materiais de Revistas Científicas - FM/MPR
Artigos e Materiais de Revistas Científicas - LIM/39