ArticlePloS one2017
Going to sleep in the supine position is a modifiable risk factor for late pregnancy stillbirth; Findings from the New Zealand multicentre stillbirth case-control study.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04437407 (UniSA BackOff! Study), which is not on this map. Cited by 37 papers, 6 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
UniSA BackOff! Study: A Randomized, Controlled, Five-way, Cross-over Trial to Evaluate the Effect of a Positional Therapy Device on Maternal Sleeping Position in the Third Trimester of Pregnancy
Who cites it
37 citing papers in PubMed, 6 syntheses or guidelines pooled it.
- Does fetal size affect maternal perception of fetal movements? Evidence from an individual participant data meta-analysis.Acta obstetricia et gynecologica Scandinavica · 2023Pooled it
- Pooled it
- A better understanding of the association between maternal perception of foetal movements and late stillbirth-findings from an individual participant data meta-analysis.BMC medicine · 2021Pooled it
- Women's sleep position during pregnancy in low- and middle-income countries: a systematic review.Reproductive health · 2021Pooled it
- Pooled it
- Association of Supine Going-to-Sleep Position in Late Pregnancy With Reduced Birth Weight: A Secondary Analysis of an Individual Participant Data Meta-analysis.JAMA network open · 2019Pooled it
- Trial
- Trial
- Modifying maternal sleep position in the third trimester of pregnancy with positional therapy: a randomised pilot trial.BMJ open · 2018Trial
- Objectively Measured Maternal Supine Sleep and Fetal Growth: A Prospective Cohort Study.BJOG : an international journal of obstetrics and gynaecology · 2026Article
- How maternal position affects umbilical and middle cerebral artery Doppler indices: insights from a scoping review.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2025Article
- Effects of sleep quality in early pregnancy on pregnancy outcomes and mood state.Sleep & breathing = Schlaf & Atmung · 2024Article
- Article
- Impact of maternal posture on fetal physiology in human pregnancy: a narrative review.Frontiers in physiology · 2024Review
- The Effect of Modified Buerger-Allen Exercises on Lower Extremities Edema in Late Pregnancy: Randomized Clinical Trial.Journal of obstetrics and gynaecology of India · 2023Article
- Vision-based detection and quantification of maternal sleeping position in the third trimester of pregnancy in the home setting-Building the dataset and model.PLOS digital health · 2023Article
- Evaluating antenatal risk in twin pregnancies-A feasibility study to identify modifiable factors associated with adverse pregnancy outcomes.Acta obstetricia et gynecologica Scandinavica · 2023Observational
- Stillbirth: prevention and supportive bereavement care.BMJ medicine · 2023Review
- Risk factors for late (28+ weeks' gestation) stillbirth in the United States, 2014-2015.PloS one · 2023Article
- Article
Corrections and comments
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Authors and funding
9 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveOur objective was to test the primary hypothesis that maternal non-left, in particular supine going-to-sleep position, would be a risk factor for late stillbirth (≥28 weeks of gestation).
methodsA multicentre case-control study was conducted in seven New Zealand health regions, between February 2012 and December 2015. Cases (n = 164) were women with singleton pregnancies and late stillbirth, without congenital abnormality. Controls (n = 569) were women with on-going singleton pregnancies, randomly selected and frequency matched for health region and gestation. The primary outcome was adjusted odds of late stillbirth associated with self-reported going-to-sleep position, on the last night. The last night was the night before the late stillbirth was thought to have occurred or the night before interview for controls. Going-to-sleep position on the last night was categorised as: supine, left-side, right-side, propped or restless. Multivariable logistic regression adjusted for known confounders.
resultsSupine going-to-sleep position on the last night was associated with increased late stillbirth risk (adjusted odds ratios (aOR) 3.67, 95% confidence interval (CI) 1.74 to 7.78) with a population attributable risk of 9.4%. Other independent risk factors for late stillbirth (aOR, 95% CI) were: BMI (1.04, 1.01 to 1.08) per unit, maternal age ≥40 (2.88, 1.31 to 6.32), birthweight <10th customised centile (2.76, 1.59 to 4.80), and <6 hours sleep on the last night (1.81, 1.14 to 2.88). The risk associated with supine-going-to-sleep position was greater for term (aOR 10.26, 3.00 to 35.04) than preterm stillbirths (aOR 3.12, 0.97 to 10.05).
conclusionsSupine going-to-sleep position is associated with a 3.7 fold increase in overall late stillbirth risk, independent of other common risk factors. A public health campaign encouraging women not to go-to-sleep supine in the third trimester has potential to reduce late stillbirth by approximately 9%.
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