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Sleep and Breathing

, Volume 20, Issue 4, pp 1231–1237 | Cite as

Sleepiness and sleep-disordered breathing during pregnancy

  • Maria Sarberg
  • Marie Bladh
  • Ann Josefsson
  • Eva Svanborg
Sleep Breathing Physiology and Disorders • Original Article

Abstract

Purpose

This study aimed to examine if there is a difference in the prevalence of obstructive sleep apnea (OSA) and sleepiness between pregnant and non-pregnant women. It also aimed to evaluate if obstetric outcomes were associated to sleep-disordered breathing among the pregnant women.

Methods

One hundred pregnant women (gestational weeks 24–34) and 80 age- and body mass index-matched non-pregnant women underwent whole-night respiratory recordings (airflow, snoring, respiratory movements, body position, pulse oximetry). The women also answered a questionnaire including the Epworth sleepiness scale.

Results

Eighty-nine percent of the pregnant women had normal body mass index (BMI). Objectively, recorded snoring was more common among the pregnant women (median 9 % of total estimated sleep time) than among the controls (4 % of total sleep time, p = 0.005). Three of the pregnant women had OSA (apnea/hypopnea index (AHI) >5), but in two cases, this was mainly due to central hypopneas. None had AHI >10. Two controls were diagnosed as OSA. Respiratory parameters including snoring showed no impact on obstetric outcomes. Total Epworth sleepiness scale (ESS) score was higher among pregnant women than among controls (median 9 vs 7, p < 0.001). There was no difference concerning the separate items. There were no significant associations between either subjectively reported or objectively recorded snoring and ESS scores.

Conclusion

There was no increased prevalence of obstructive sleep apnea among pregnant women. One reason for this could be that the majority of the women in this study were non-obese. Neither OSA nor snoring was likely an explanation for the increased daytime sleepiness seen in the pregnant women.

Keywords

Pregnancy Snoring Sleep recordings Sleep-disordered breathing Obstructive sleep apnea Epworth sleepiness scale 

Notes

Acknowledgments

The authors thank Lena Harder, M.D., for initial scoring of the recordings of the pregnant women. We also thank research midwives Pia Cederholm and Cecilia Rostedt at the antenatal care center for valuable help with recruiting the women and collecting data.

Compliance with ethical standards

Funding

No funding was received for this research.

Conflict of interest

The authors declare that they have no competing interests.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Maria Sarberg
    • 1
    • 2
  • Marie Bladh
    • 1
    • 2
  • Ann Josefsson
    • 1
    • 2
  • Eva Svanborg
    • 3
  1. 1.Department of Obstetrics and GynaecologyLinköping UniversityLinköpingSweden
  2. 2.Department of Clinical and Experimental MedicineLinköping UniversityLinköpingSweden
  3. 3.Department of Clinical NeurophysiologyLinköping UniversityLinköpingSweden

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