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  • Title: Concurrent insomnia and habitual snoring are associated with adverse pregnancy outcomes.
    Author: Okun ML, O'Brien LM.
    Journal: Sleep Med; 2018 Jun; 46():12-19. PubMed ID: 29773206.
    Abstract:
    OBJECTIVES: Pregnant women report disturbed sleep, including habitual snoring and insomnia. The co-occurrence among non-pregnant cohorts is 30%-50% with increased risk for adverse health outcomes. To date, no study has examined the comorbid status or impact in pregnant women. METHODS: The prevalence of insomnia (INS) and habitual snoring (HS) were examined in 439 women in the third trimester (34.1 ± 3.7 weeks). Habitual snoring (snoring ≥3 times/week) was self-reported. Insomnia was determined using the Insomnia Symptom Questionnaire (ISQ). RESULTS: Four groups emerged: HS-/ISQ- (n = 161; 36.7%), HS-/ISQ+ (n = 146; 33.3%), HS+/ISQ- (n = 63; 14.4%), and HS+/ISQ+ (n = 69; 15.7%). Logistic regression models revealed both independent associations, as well as comorbid HS/INS status with excessive daytime sleepiness (aOR 3.8, 95%CI 2.3-6.5, p < 0.001; aOR 2.2, 95%CI 1.1-4.4, p = 0.02; aOR 7.2, 95%CI 3.7-14.0, p < 0.001, respectively). Only comorbid HS/INS was associated with gestational hypertension (aOR 3.2 95%CI 1.0-10.6, p = 0.048). Insomnia alone and HS alone were associated with a baby born large for gestational age (aOR 2.9 95%CI 1.2-7.1, p = 0.019 and aOR 3.5, 95%CI 1.1-11.1, p = 0.034 respectively) but however, the comorbid state was not significantly associated with LGA. Only women with HS alone were at increased odds of having an unplanned cesarean section (aOR 2.2 95%CI 1.0-4.6, p = 0.046). CONCLUSIONS: Both insomnia alone and comorbid insomnia/habitual snoring were associated with adverse outcomes even after accounting for confounders. These findings are clinically relevant since adverse pregnancy outcomes may have severe consequences for both mother and baby. In order to mitigate these outcomes, identifying viable treatment(s) for women at risk should be considered a high priority.
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