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VOLUME 36, ISSUE 11

SNORING DURING PREGNANCY AND DELIVERY OUTCOMES: A COHORT STUDY
Snoring during Pregnancy and Delivery Outcomes: A Cohort Study

http://dx.doi.org/10.5665/sleep.3112

Louise M. O'Brien, PhD, MS1,2,4; Alexandra S. Bullough, MBChB, FRCA3; Jocelynn T. Owusu, MPH1; Kimberley A. Tremblay, MS1; Cynthia A. Brincat, MD, PhD4; Mark C. Chames, MD4; John D. Kalbfleisch, PhD5; Ronald D. Chervin, MD, MS1

1Sleep Disorders Center, Department of Neurology; 2Department of Oral and Maxillofacial Surgery; 3Department of Anesthesiology; 4Department of Obstetrics and Gynecology; 5Department of Biostatistics, University of Michigan, Ann Arbor, MI



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Study Objective:

This cohort study examined the impact of maternal snoring on key delivery outcomes such as mode of delivery, infant birth centile, and small-for-gestational age.

Design:

Cohort study.

Setting:

A large tertiary medical center.

Patients or Participants:

Pregnant women in their third trimester were recruited between March 2007 and December 2010.

Measurements and Results:

Women were screened for habitual snoring, as a known marker for sleep disordered breathing. Outcome data were obtained from medical records following delivery and birth centiles were calculated. Of 1,673 women, a total of 35% reported habitual snoring (26% with pregnancy-onset snoring and 9% with chronic snoring). After adjusting for confounders, chronic snoring was associated with small-forgestational age (OR 1.65, 95%CI 1.02-2.66, P = 0.041) and elective cesarean delivery (OR 2.25, 95%CI 1.22-4.18, P = 0.008). Pregnancy-onset snoring was associated with emergency cesarean delivery (OR 1.68, 95%CI 1.22-2.30, P = 0.001).

Conclusion:

Maternal snoring during pregnancy is a risk factor for adverse delivery outcomes including cesarean delivery and small-for-gestational age. Screening pregnant women for symptoms of SDB may provide an early opportunity to identify women at risk of poor delivery outcomes.

Clinical Trials Registration:

Identifier: NCT01030003.

Citation:

O'Brien LM; Bullough AS; Owusu JT; Tremblay KA; Brincat CA; Chames MC; Kalbfleisch JD; Chervin RD. Snoring during pregnancy and delivery outcomes: a cohort study. SLEEP 2013;36(11):1625-1632.

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