Association between sleep during pregnancy and birth outcomes: a prospective cohort study

Abstract Objective A prospective cohort study was conducted to investigate sleep status during the early and second trimester of pregnancy in pregnant women on adverse birth outcome, such as preterm birth, low birth weight and small for gestational age. Methods Multivariable logistic regression mode...

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Main Authors: Libing Huang, Huanjun Chen, Fuhui Yao, Zhonghan Sun, Shijiao Yan, Yuwei Lai, Chuanzhu Lv, Xiong-Fei Pan, Rixing Wang, Xingyue Song
Format: Article
Language:English
Published: BMC 2025-02-01
Series:Reproductive Biology and Endocrinology
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Online Access:https://doi.org/10.1186/s12958-025-01350-x
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author Libing Huang
Huanjun Chen
Fuhui Yao
Zhonghan Sun
Shijiao Yan
Yuwei Lai
Chuanzhu Lv
Xiong-Fei Pan
Rixing Wang
Xingyue Song
author_facet Libing Huang
Huanjun Chen
Fuhui Yao
Zhonghan Sun
Shijiao Yan
Yuwei Lai
Chuanzhu Lv
Xiong-Fei Pan
Rixing Wang
Xingyue Song
author_sort Libing Huang
collection DOAJ
description Abstract Objective A prospective cohort study was conducted to investigate sleep status during the early and second trimester of pregnancy in pregnant women on adverse birth outcome, such as preterm birth, low birth weight and small for gestational age. Methods Multivariable logistic regression models were used to analyze the association of sleep status during the early and second trimester of pregnancy with adverse birth outcomes and generated the odds ratio and 95% confidence interval. Results 5,418 pregnant women were included in the analysis. In the multivariable model, compared with 7.1–8 h/night, sleep ≤ 7 h/night during second trimester increases the risk of preterm birth (OR: 1.43, 95% CI: 1.12,1.85), and the risk of preterm birth was decreased in pregnant women who slept > 9 h/night (OR: 0.79, 95% CI: 0.53,0.93). Sleep quality, and sleep changes in the early and second trimesters, and sleep duration in the early pregnancy were not statistically associated with preterm birth, low birth weight and small for gestational age. Conclusions Short sleep duration during pregnancy is associated with a higher risk of preterm birth and longer sleep duration at night is associated with a lower risk of preterm birth, but the latter needs further verification. Sleep status during pregnancy was not associated with low birth weight and small for gestational age. In order to reduce risk of adverse birth outcomes, sleep problems in pregnant women should be strengthened during pregnancy care. Clinical trial number Not applicable.
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spelling doaj-art-5033d2674ea04cb7925b4b84280c50f62025-02-09T13:00:02ZengBMCReproductive Biology and Endocrinology1477-78272025-02-012311910.1186/s12958-025-01350-xAssociation between sleep during pregnancy and birth outcomes: a prospective cohort studyLibing Huang0Huanjun Chen1Fuhui Yao2Zhonghan Sun3Shijiao Yan4Yuwei Lai5Chuanzhu Lv6Xiong-Fei Pan7Rixing Wang8Xingyue Song9Department of Emergency, Zhanjiang Central People’s HospitalDanzhou Center for Disease Control and PreventionDepartment of Emergency, Hainan Clinical Research Center for Acute and Critical Diseases, The Second Affiliated Hospital of Hainan Medical UniversityHuman Phenome Institute, Fudan UniversitySchool of Public Health, Hainan Medical UniversityDepartment of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and TechnologyEmergency Medicine Center, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of ChinaSection of Epidemiology and Population Health, Department of Gynecology and Obstetrics, Ministry of Education Key Laboratory of Birth Defects and Related Diseases of Women and Children & National Medical Products Administration Key Laboratory for Technical Research on Drug Products In Vitro and In Vivo Correlation, West China Second University Hospital, Sichuan UniversityDepartment of Emergency, Hainan Clinical Research Center for Acute and Critical Diseases, The Second Affiliated Hospital of Hainan Medical UniversityDepartment of Emergency, Hainan Clinical Research Center for Acute and Critical Diseases, The Second Affiliated Hospital of Hainan Medical UniversityAbstract Objective A prospective cohort study was conducted to investigate sleep status during the early and second trimester of pregnancy in pregnant women on adverse birth outcome, such as preterm birth, low birth weight and small for gestational age. Methods Multivariable logistic regression models were used to analyze the association of sleep status during the early and second trimester of pregnancy with adverse birth outcomes and generated the odds ratio and 95% confidence interval. Results 5,418 pregnant women were included in the analysis. In the multivariable model, compared with 7.1–8 h/night, sleep ≤ 7 h/night during second trimester increases the risk of preterm birth (OR: 1.43, 95% CI: 1.12,1.85), and the risk of preterm birth was decreased in pregnant women who slept > 9 h/night (OR: 0.79, 95% CI: 0.53,0.93). Sleep quality, and sleep changes in the early and second trimesters, and sleep duration in the early pregnancy were not statistically associated with preterm birth, low birth weight and small for gestational age. Conclusions Short sleep duration during pregnancy is associated with a higher risk of preterm birth and longer sleep duration at night is associated with a lower risk of preterm birth, but the latter needs further verification. Sleep status during pregnancy was not associated with low birth weight and small for gestational age. In order to reduce risk of adverse birth outcomes, sleep problems in pregnant women should be strengthened during pregnancy care. Clinical trial number Not applicable.https://doi.org/10.1186/s12958-025-01350-xAdverse birth outcomesCohort studySleep durationSleep quality
spellingShingle Libing Huang
Huanjun Chen
Fuhui Yao
Zhonghan Sun
Shijiao Yan
Yuwei Lai
Chuanzhu Lv
Xiong-Fei Pan
Rixing Wang
Xingyue Song
Association between sleep during pregnancy and birth outcomes: a prospective cohort study
Reproductive Biology and Endocrinology
Adverse birth outcomes
Cohort study
Sleep duration
Sleep quality
title Association between sleep during pregnancy and birth outcomes: a prospective cohort study
title_full Association between sleep during pregnancy and birth outcomes: a prospective cohort study
title_fullStr Association between sleep during pregnancy and birth outcomes: a prospective cohort study
title_full_unstemmed Association between sleep during pregnancy and birth outcomes: a prospective cohort study
title_short Association between sleep during pregnancy and birth outcomes: a prospective cohort study
title_sort association between sleep during pregnancy and birth outcomes a prospective cohort study
topic Adverse birth outcomes
Cohort study
Sleep duration
Sleep quality
url https://doi.org/10.1186/s12958-025-01350-x
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