ArticlePloS one2013
Trends in the distribution of gestational age and contribution of planned births in New South Wales, Australia.
Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Trends in gestational age at birth in the city of São Paulo, Brazil between 2012 and 2019.PloS one · 2025Observational
- Likelihood of primary cesarean section following induction of labor in singleton cephalic pregnancies at term, compared with expectant management: An Australian population-based, historical cohort study.Acta obstetricia et gynecologica Scandinavica · 2024Article
- Trend of pregnancy outcomes in type 1 diabetes compared to control women: a register-based analysis in 1996-2018.Frontiers in endocrinology · 2023Article
- Trends in labor induction indications: A 20-year population-based study.Acta obstetricia et gynecologica Scandinavica · 2022Article
- Gestational age and hospital admissions during childhood: population based, record linkage study in England (TIGAR study).BMJ (Clinical research ed.) · 2020Article
- Article
- A composite neonatal adverse outcome indicator using population-based data: an update.International journal of population data science · 2020Article
- Changes in data management contribute to temporal variation in gestational duration distribution in the Swedish Medical Birth Registry.PloS one · 2020Article
- Maternal characteristics and type of prenatal care associated with peregrination before childbirth.Revista de saude publica · 2019Article
- International variations in the gestational age distribution of births: an ecological study in 34 high-income countries.European journal of public health · 2018Article
- Gestational Age and Cardiorespiratory Fitness in Individuals Born At Term: A Life Course Study.Journal of the American Heart Association · 2017Article
- Gestational age, mode of birth and breastmilk feeding all influence acute early childhood gastroenteritis: a record-linkage cohort study.BMC pediatrics · 2016Article
- Australian national birthweight percentiles by sex and gestational age for twins, 2001-2010.BMC pediatrics · 2015Article
- Article
- The association between temporal changes in the use of obstetrical intervention and small-for-gestational age live births.BMC pregnancy and childbirth · 2015Article
- Integrating Diverse Types of Genomic Data to Identify Genes that Underlie Adverse Pregnancy Phenotypes.PloS one · 2015Article
- Rate of spontaneous onset of labour before planned repeat caesarean section at term.BMC pregnancy and childbirth · 2014Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is concern that the rate of planned births (by pre-labour caesarean section or induction of labour) is increasing and that the gestation at which they are being conducted is decreasing. The aim of this study was to describe trends in the distribution of gestational age, and assess the contribution of planned birth to any such changes.
methodsWe utilised the New South Wales (NSW) Perinatal Data Collection to undertake a population-based study of all births in NSW, Australia 1994-2009. Trends in gestational age were determined by year, labour onset and plurality of birth.
resultsFrom 1994-2009, there was a gradual and steady left-shift in overall distribution of gestational age at birth, with a decline in the modal gestational age from 40 to 39 weeks. For singletons, there was a steady but significant reduction in the proportion of spontaneous births. Labour inductions increased in the proportion performed, with a gradual and changing shift in the distribution from a majority at 40 weeks to an increase at both 37-39 weeks and 41 weeks gestation. The proportion of pre-labour caesareans also increased steadily at each gestational age and doubled since 1994, with most performed at 39 weeks in 2009 compared with 38 weeks up to 2001.
conclusionsFindings suggest a changing pattern towards births at earlier gestations, fewer births commencing spontaneously and increasing planned births. Factors associated with changing clinical practice and long-term implications on the health and well-being of mothers and babies should be assessed.
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