ArticleBMJ open2017
Burden of early-term birth on adverse infant outcomes: a population-based cohort study in Brazil.
Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
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Who cites it
31 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Neonatal complications in late-preterm and early-term infants: a systematic review of observational studies.The Cochrane database of systematic reviews · 2026Pooled it
- Short- and Long-Term Consequences of Late-Preterm and Early-Term Birth.Children (Basel, Switzerland) · 2025Review
- Trends in gestational age at birth in the city of São Paulo, Brazil between 2012 and 2019.PloS one · 2025Observational
- Inequalities in the care for Labor and Delivery in Rio de Janeiro - Birth in Brazil Research II: national survey on abortion, delivery, and birth.Revista de saude publica · 2025Article
- Hospital practices and breastfeeding in Rio de Janeiro: data from the Nascer no Brasil II Survey.Revista de saude publica · 2025Article
- The effects of a quality improvement project to reduce caesarean sections in selected private hospitals in Brazil.Reproductive health · 2024Article
- An implementation analysis of a quality improvement project to reduce cesarean section in Brazilian private hospitals.Reproductive health · 2024Article
- Neonatal Outcomes of Early Term Versus Late-Term Births in a University Teaching Hospital in Lagos, Nigeria.Cureus · 2024Article
- Protocol of Birth in Brazil II: National Research on Abortion, Labor and Childbirth.Cadernos de saude publica · 2024Article
- Maternal health surveillance panel: a tool for expanding epidemiological surveillance of women's health and its determinants.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2024Article
- Early-Term Neonates Demonstrate a Higher Likelihood of Requiring Phototherapy Compared to Those Born Full-Term.Children (Basel, Switzerland) · 2023Article
- Cesarean sections and early-term births according to Robson classification: a population-based study with more than 17 million births in Brazil.BMC pregnancy and childbirth · 2023Article
- Association between Sexual Activity during Pregnancy, Pre- and Early-Term Birth, and Vaginal Cytokine Inflammation: A Prospective Study of Black Women.Healthcare (Basel, Switzerland) · 2023Article
- Breastfeeding in the first hour of life in Brazilian private hospitals participating in a quality-of-care improvement project.Reproductive health · 2023Article
- Gestational age: comparing estimation methods and live births' profile.Revista brasileira de epidemiologia = Brazilian journal of epidemiology · 2023Article
- Microbial and human transcriptome in vaginal fluid at midgestation: Association with spontaneous preterm delivery.Clinical and translational medicine · 2022Article
- Development of necrotizing enterocolitis in full-term infants with duct dependent congenital heart disease.BMC pediatrics · 2022Article
- Alberta Infant Motor Scale (AIMS) Performance of Early-Term Greek Infants: The Impact of Shorter Gestation on Gross Motor Development among "Term-Born" Infants.Children (Basel, Switzerland) · 2022Article
- Neonatal mortality by gestational age in days in infants born at term: A cohort study in Sao Paulo city, Brazil.PloS one · 2022Article
- Recurrent preterm birth: data from the study "Birth in Brazil".Revista de saude publica · 2022Article
Corrections and comments
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectivesTo estimate the national rate of early-term live births in Brazil and to evaluate the effect of birth at 37 and 38 weeks' gestation, as compared with 39 and 40 weeks' gestation on infant outcomes according to precursors of birth and the existence of maternal/fetal medical conditions.
designNational perinatal population-based cohort study.
setting266 maternity services located in the five Brazilian macroregions.
participants18 652 singleton live newborns from 37 0/7 to 40 6/7 weeks of gestation.
main outcome measuresResuscitation in delivery room, oxygen therapy, transient tachypnoea, admission to neonatal intensive care unit (NICU), hypoglycaemia, use of antibiotics, phototherapy, phototherapy after hospital discharge, neonatal death and breastfeeding.
resultsEarly terms accounted for 35% (95% CI 33.4% to 36.7%) of all live births. Among provider-initiated births in women without medical conditions, infants of 37 and 38 weeks' gestation had higher odds of oxygen therapy (adjusted OR (AOR) 2.93, 95% CI 1.72 to 4.98 and AOR 1.92 95% CI 1.18 to 3.13), along with admission to NICU (AOR 2.01, 95% CI 1.18 to 3.41 and AOR 1.56, 95% CI 1.02 to 2.60), neonatal death (AOR 14.40, 95% CI 1.94 to 106.69 and AOR 13.76,95% CI 2.84 to 66.75), hypoglycaemia in the first 48 hours of life (AOR 7.86, 95% CI 1.95 to 31.71 and AOR 5.76, 95% CI 1.63 to 20.32), transient tachypnoea (AOR 2.98, 95% CI 1.57 to 5.65 and AOR 2.12, 95% CI 1.00 to 4.48) and the need for phototherapy within the first 72 hours of life (AOR 3.59, 95% CI 1.95 to 6.60 and AOR 2.29, 95% CI 1.49 to 3.53), yet lower odds of breastfeeding up to 1 hour after birth (AOR 0.67, 95% CI 0.53 to 0.86 and AOR 0.87, 95% CI 0.76 to 0.99) and exclusive breastfeeding during hospital stay (AOR 0.68, 95% CI 0.51 to 0.89 and AOR 0.84, 95% CI 0.71 to 0.99).
conclusionBirth at 37 and 38 weeks' gestation increased the risk of most adverse infant outcomes analysed, especially among provider-initiated births and should be avoided before 39 weeks' gestation in healthy pregnancies.
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