Abstract
Due to the high prevalence in pregnant women and potential association with pregnancy complications or perinatal outcomes, sleep-disordered breathing (SDB) has become an increasing concern. Pubmed and Embase were retrieved from inception until 2017 to conduct a meta-analysis to explore the association of SDB and several outcomes during gestation. A stratified analysis differentiated by the type of SDB [snoring alone/obstructive sleep apnea (OSA)] was also performed. Pooled odds ratios were produced for binary outcomes. Weighted mean differences were also produced for continuous outcomes. Sensitivity analysis was performed to identify the impact of individual studies on summary results and estimation of publication bias was performed by funnel plot. 35 studies with a total of 56,751,837 subjects were included. SDB during pregnancy was associated with a significantly increased risk of gestational diabetes mellitus (GDM), pregnancy-induced hypertension (PIH), and preeclampsia (PEC), but not significantly associated with fetal maternal outcomes, namely APGAR score and birth weight. Moreover, OSA was linked with an increasing risk of GDM, PIH, PEC and preterm birth while snoring appeared to increase the risk of GDM, PIH, and PEC. The finding provided potential evidence for association between SDB and adverse perinatal outcomes. SDB increased the risk of some pregnancy complications while its influence to fetal outcomes was not clear.
Highlights
Sleep-disordered breathing (SDB) or sleep-related breathing disorders are characterized by abnormalities of respiration during sleep
The retrieved literatures to be included in our study must meet all the following criteria: [1] observational studies with pregnant women as subjects; [2] observational studies without any intervention; [3] SDB was diagnosed as either snoring or obstructive sleep apnea (OSA) using overnight sleep monitoring [20], Berlin Questionnaire [21], or diagnostic criteria illustrated in International Classification of Sleep Disorders Third Edition (ICSD-3); [4] at least one of the pregnancy complications including gestational diabetes mellitus (GDM), pregnancyinduced hypertension (PIH), PEC, or fetal outcomes including birth weight (BW), APGAR (5 min), and preterm birth (PTB) was assessed in the study; and [5] Sufficient data could be derived for evidence synthesis and statistical analysis
Results are expressed as odds ratios (ORs) with 95% confidence interval (CI), birth weight, and APGAR are expressed with weighted mean differences (WMDs) with 95% CI
Summary
Due to the high prevalence in pregnant women and potential association with pregnancy complications or perinatal outcomes, sleep-disordered breathing (SDB) has become an increasing concern. Methods: Pubmed and Embase were retrieved from inception until 2017 to conduct a meta-analysis to explore the association of SDB and several outcomes during gestation. A stratified analysis differentiated by the type of SDB [snoring alone/obstructive sleep apnea (OSA)] was performed. Pooled odds ratios were produced for binary outcomes. Weighted mean differences were produced for continuous outcomes. Sensitivity analysis was performed to identify the impact of individual studies on summary results and estimation of publication bias was performed by funnel plot
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