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  • Title: Early Term Deliveries and the Risk of Pediatric Obstructive Sleep Apnoea in the Offspring.
    Author: Walfisch A, Wainstock T, Beharier O, Landau D, Sheiner E.
    Journal: Paediatr Perinat Epidemiol; 2017 Mar; 31(2):149-156. PubMed ID: 28181680.
    Abstract:
    BACKGROUND: Preterm delivery may affect the development of the upper airways resulting in a higher risk of obstructive sleep apnoea (OSA). We investigated whether children born at early term (37-38 6/7 weeks' gestation) are at an increased risk for childhood OSA as compared with those born later. METHODS: In this population-based cohort analysis all singleton deliveries occurring between 1991-2013 at a single regional tertiary medical centre were included. Gestational age upon delivery was sub-divided into: early preterm (<33 6/7 weeks' gestation), late preterm (34-36 6/7), early term, full term (39-40 6/7), late term (41-41 6/7), and post term (>42 0/7). Incidence of OSA related hospitalizations of the offspring, up to the age of 18 years, was evaluated. A survival curve and a Cox model were used to assess the association. RESULTS: During the study period 240 953 deliveries met the inclusion criteria. OSA hospitalization (n = 1320) rates decreased as gestational age increased from 1.1% in the early preterm group, 0.8% in late preterm, 0.7% at early term, 0.5% in full term, 0.4% in late term, to 0.3% in post term born children. In the Cox regression, early term delivery exhibited an increased risk for paediatric OSA (adjusted hazard ratio (HR) 1.3 95% Confidence interval (CI) 1.2, 1.5) while late and post term deliveries were associated with significantly lower OSA risk when compared with full term (HR 0.8 95% CI 0.6, 0.9 and HR 0.6 95% CI 0.4, 0.8, respectively). CONCLUSIONS: Early term deliveries are associated with higher rates of paediatric OSA, which decrease gradually as gestational age advances.
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