Observational studyObstetrics and gynecology2019
Prospective Evaluation of Maternal Sleep Position Through 30 Weeks of Gestation and Adverse Pregnancy Outcomes.
Observational study in Obstetrics and gynecology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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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.
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Who cites it
20 citing papers in PubMed.
- A Position Modification Device for the Prevention of Supine Sleep During Pregnancy: A Randomised Crossover Trial.BJOG : an international journal of obstetrics and gynaecology · 2025Trial
- Trial
- Objectively Measured Maternal Supine Sleep and Fetal Growth: A Prospective Cohort Study.BJOG : an international journal of obstetrics and gynaecology · 2026Article
- Periconceptual Caffeine Intake and Adverse Pregnancy Outcomes: Results From the nuMoM2b Cohort.BJOG : an international journal of obstetrics and gynaecology · 2026Article
- Article
- Sleeping posture in pregnancy.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2025Article
- Development and validation of a nomogram for predicting sleep disturbance in pregnant and postpartum women: A pilot study.Heliyon · 2024Article
- The effect of maternal sleep quality in late pregnancy on prenatal, birth and early postnatal outcomes.Journal of sleep research · 2024Article
- Transitioning sleeping position detection in late pregnancy using computer vision from controlled to real-world settings: an observational study.Scientific reports · 2024Observational
- ChatGPT-3.5 Versus Google Bard: Which Large Language Model Responds Best to Commonly Asked Pregnancy Questions?Cureus · 2024Article
- Article
- Mothers working to prevent early stillbirth study (MiNESS 20-28): a case-control study protocol.BMJ open · 2024Article
- Impact of maternal posture on fetal physiology in human pregnancy: a narrative review.Frontiers in physiology · 2024Review
- Applying Scientific Rationale to the Current Perceptions and Explanations of Massage and Miscarriage in the First Trimester.International journal of therapeutic massage & bodywork · 2023Article
- Stillbirth: prevention and supportive bereavement care.BMJ medicine · 2023Review
- Article
- Modification of maternal late pregnancy sleep position: a survey evaluation of a New Zealand public health campaign.BMJ open · 2021Article
- Sleep position and breathing in late pregnancy and perinatal outcomes.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2020Article
- Sleep in the Supine Position during Pregnancy Is Associated with Fetal Cerebral Redistribution.Journal of clinical medicine · 2020Article
- Response to Letter.Obstetrics and gynecology · 2020Article
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Authors and funding
20 authors.
Funding
Abstract
objectiveTo examine the relationship between prospectively assessed maternal sleep position and subsequent adverse pregnancy outcomes.
methodsThis was a secondary analysis of a prospective observational multicenter cohort study of nulliparous women with singleton gestations who were enrolled between October 2010 and May 2014. Participants had three study visits that were not part of clinical care. They prospectively completed in-depth sleep questionnaires between 6 0/7 and 13 6/7 weeks of gestation and 22 0/7 and 29 6/7 weeks of gestation, the first and third study visits. A subset of women also underwent level 3 home sleep tests using the Embletta Gold device. The primary outcome was a composite of adverse pregnancy outcomes such as stillbirth, a small-for-gestational-age newborn, and gestational hypertensive disorders.
resultsA total of 8,706 (of 10,038) women had data from at least one sleep questionnaire and for pregnancy outcomes, and they comprised the population for this analysis. The primary outcome occurred in 1,903 pregnancies (22%). There was no association between reported non-left lateral or supine sleep during the last week of the first visit (adjusted odds ratio [aOR] 1.00 [95% CI 0.89-1.14]) or third visit (aOR 0.99 [95% CI 0.89-1.11] and the composite or any individual outcome, except for an apparent protective effect for stillbirth at the third visit (aOR 0.27 (95% CI 0.09-0.75). Women with objectively measured supine sleep position for at least 50% of the time were no more likely than those in the supine position 50% or less of the time to have the composite adverse outcome.
conclusionsGoing to sleep in the supine or right lateral position, as self-reported before the development of pregnancy outcome and objectively assessed through 30 weeks of gestation, was not associated with an increased risk of stillbirth, a small-for-gestational-age newborn, or gestational hypertensive disorders.
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