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the claim
Sleeping on the back in late pregnancy increases the risk of stillbirth.
the verdict
SUPPORTED
the evidence backs this
Recorded sources
8 sources for · 0 against
Is it true that sleeping on the back in late pregnancy increases the risk of stillbirth?
Yes. An individual-participant-data meta-analysis reports that going to sleep on the back after 28 weeks is independently associated with roughly 2.6 times the odds of late stillbirth, and a New Zealand case-control study found a similar association; guideline reviews and commentaries likewise treat supine going-to-sleep position as a risk factor, though several sources note the evidence is observational and causality is not proven.
Verdict: SUPPORTED · 8 sources for, 0 against · Last checked
Evidence for · 8
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McCowan, L. M. E., Thompson, J. M. D., Cronin, R. S., Li, M., Stacey, T., & Stone, P. R. (2017). 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. doi.org. https://doi.org/10.1371/journal.pone.0179396
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More for · 7
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AJ, K., H, Z., P, E., ME, H., R, A., I, L., L, R., S, A., B, T., SR, H., & E, D. (2024). Transitioning sleeping position detection in late pregnancy using computer vision from controlled to real-world settings: an observational study.. doi.org. https://doi.org/10.1038/s41598-024-68472-x
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RS, C., M, L., JMD, T., A, G., CH, R., AEP, H., T, S., VM, C., V, B., NH, A., LM, O., EA, M., LM, A., & LME, M. (2019). An Individual Participant Data Meta-analysis of Maternal Going-to-Sleep Position, Interactions with Fetal Vulnerability, and the Risk of Late Stillbirth.. doi.org. https://doi.org/10.1016/j.eclinm.2019.03.014
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The Collaborative IPD of Sleep and Stillbirth (Cribss): is maternal going-to-sleep position a risk factor for late stillbirth and does maternal sleep position interact with fetal vulnerability? An individual participant data meta-analysis study protocol. (n.d.). cir.nii.ac.jp. https://doi.org/10.1136/bmjopen-2017-020323
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Is Back Sleeping Harmful When Pregnant?. (n.d.). health.clevelandclinic.org. https://health.clevelandclinic.org/exactly-how-bad-is-it-to-sleep-on-your-back-when-youre-pregnant
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Kember, A. J., Selvarajan, R., Park, E., Huang, H., Zia, H., & Rahman, F. (2023). Vision-based detection and quantification of maternal sleeping position in the third trimester of pregnancy in the home setting–Building the dataset and model. doi.org. https://doi.org/10.1371/journal.pdig.0000353
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Maternal Going to Sleep Position and Late Stillbirth: Time to Act but With Care - PMC Lock. (n.d.). pmc.ncbi.nlm.nih.gov. https://doi.org/10.1016/j.eclinm.2019.04.002
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AJ, K., JL, A., SC, H., DG, R., CJ, G., & SR, H. (2024). Impact of maternal posture on fetal physiology in human pregnancy: a narrative review.. doi.org. https://doi.org/10.3389/fphys.2024.1394707
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