• Sleep Breath · Sep 2013

    Sleep-disordered breathing and daytime napping are associated with maternal hyperglycemia.

    • Izci Balserak Bilgay B Centre for Sleep and Circadian Neurobiology, University of Pennsylvania School of Medicine, 3624 Market Street, Suite 205, Philadelphia, PA 19104, , Nicholas Jackson, Sarah A Ratcliffe, Allan I Pack, and Grace W Pien.
    • Centre for Sleep and Circadian Neurobiology, University of Pennsylvania School of Medicine, 3624 Market Street, Suite 205, Philadelphia, PA 19104, USA. Bilgay.Izci-Balserak@uphs.upenn.edu
    • Sleep Breath. 2013 Sep 1; 17 (3): 1093-102.

    ObjectivesSleep disturbances in pregnancy may impair glucose mechanism. This study aimed to examine associations of sleep-disordered breathing, sleep, and nap duration with 1-h glucose challenge test (GCT) levels in pregnant women after controlling for known risk factors for gestational diabetes.MethodsThis is a case-control study of 104 pregnant women. All women underwent full polysomnography and a GCT and completed the multivariable apnea prediction and Pittsburgh Sleep Quality indexes. The primary outcome was maternal hyperglycemia measured by GCT. Bivariate and multivariable logistic regression analyses were performed.ResultsOver 13 % subjects reported habitual snoring in the first trimester. Only 9.3 % women with normoglycemia (GCT < 135) were habitual snorers, whereas 45.5 % women with hyperglycemia (GCT ≥ 135) had habitual snoring (p < 0.001). Sleep-disordered breathing symptoms (loud snoring, snorting/gasping, and apneas) (odds ratio (OR) 2.85; 95 % confidence interval (CI) 1.50-5.41; p = 0.001) and total nap duration (OR 1.48; 95 % CI 0.96-2.28; p = 0.08) were associated with hyperglycemia. After adjusting for confounders, sleep-disordered breathing symptoms (OR 3.37; 95 % CI 1.44-8.32; p = 0.005) and nap duration (OR 1.64; 95 % CI 1.00-2.681.02; p = 0.05) continued to be associated with hyperglycemia. However, the primary exposure measure, the apnea/hypopnea index in the first trimester was not significantly associated with hyperglycemia (OR 1.03; 95 % CI 0.83-1.28; p = 0.77).ConclusionsSleep-disordered breathing symptoms and nap duration are associated with hyperglycemia. Sleep duration was not associated with hyperglycemia. Research is needed concerning whether women with sleep-disordered breathing and/or daytime napping are at risk for gestational diabetes.

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