ArticleActa obstetricia et gynecologica Scandinavica2021
Trends in singleton preterm birth in Victoria, 2007 to 2017: A consecutive cross-sectional study.
Article in Acta obstetricia et gynecologica Scandinavica, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 4 citations in OpenAlex.
- Clusters and associations of adverse neonatal events with adult risk of multimorbidity: A secondary analysis of birth cohort data.PloS one · 2025Article
- Iatrogenic and spontaneous preterm birth in England: A population-based cohort study.BJOG : an international journal of obstetrics and gynaecology · 2023Article
- Early mortality among aboriginal and non-aboriginal women who had a preterm birth in Western Australia: A population-based cohort study.Paediatric and perinatal epidemiology · 2023Article
- Trends in singleton preterm birth in Victoria, 2007 to 2017: A consecutive cross-sectional study.Acta obstetricia et gynecologica Scandinavica · 2021Article
- Factors Associated with Increased Risk of Early Severe Neonatal Morbidity in Late Preterm and Early Term Infants.Journal of clinical medicine · 2021Article
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Authors and funding
8 authors at 3 institutions in 3 countries.
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No grant is acknowledged in the PubMed record.
Abstract
introductionPreterm birth is a major cause of perinatal morbidity and mortality worldwide. In many countries preterm birth rates are increasing, largely as a result of increases in iatrogenic preterm birth, whereas in other countries rates are stable or even declining. The objective of the study is to describe trends in singleton preterm births in Victoria from 2007 to 2017 in relation to trends in perinatal mortality to identify opportunities for improvements in clinical care. MATERIAL AND
methodsWe conducted a consecutive cross-sectional study in all women with a singleton pregnancy giving birth at ≥20 weeks of pregnancy in Victoria, Australia, between 2007 and 2017, inclusive. Rates of preterm birth and perinatal mortality were calculated and trends were analyzed in all pregnancies, in pregnancies complicated by fetal growth problems, hypertension, (pre)eclampsia or prelabor rupture of membranes (PROM), and in (low-risk) pregnancies not complicated by any of these conditions.
resultsThere were 811 534 singleton births between 2007 and 2017. Preterm birth increased from 5.9% (4074 births) to 6.4% (4893 births; P < .001), due to an increase in iatrogenic preterm birth from 2.5% (1730 births) to 3.6% (2730 births; P < .001). Comparable trends were seen in pregnancies complicated by fetal growth problems and hypertension and in pregnancies not complicated by small for gestational age (SGA), hypertension, (pre)eclampsia or PROM (all P < .001). In pregnancies complicated by SGA, hypertension, (pre)eclampsia or PROM the perinatal mortality rate from 20 weeks of gestation fell (13 to 12 per 1000 births; P < .001). In pregnancies not complicated by SGA, hypertension, (pre)eclampsia or PROM there was no significant change in the perinatal mortality from 28 weeks and no decrease in the preterm weekly prospective stillbirth risk.
conclusionsThe singleton preterm birth rate in Victoria is increasing, driven by an increase in iatrogenic preterm birth, both in pregnancies complicated by SGA and hypertension, and in pregnancies not complicated by SGA, hypertension, (pre)eclampsia or PROM. While perinatal mortality decreased in the pregnancies complicated by SGA, hypertension, (pre)eclampsia or PROM, no significant reduction in perinatal mortality from 28 weeks or in preterm weekly prospective stillbirth risk was noted in the pregnancies not complicated by any of these conditions.
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