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Seasonal variability of sleep-disordered breathing in children

David Gozal1, Ahmad Shata, Meiho Nakayama

  • 1Department of Pediatrics and Comer Children's Hospital, Pritzker School of Medicine, University of Chicago, Chicago, Illinois 60637, USA. dgozal@uchicago.edu

Pediatric Pulmonology
|February 2, 2011
PubMed

Insights

Pediatric snoring and sleep-disordered breathing (SDB) show seasonal patterns. Snoring peaks in spring/summer, while SDB severity is highest in winter/spring, suggesting environmental influences.

Area of Science:

  • Pediatric Pulmonology
  • Sleep Medicine
  • Environmental Health

Background:

  • Snoring and sleep-disordered breathing (SDB) are common in children.
  • Allergies and viral infections are suspected contributors to SDB.
  • The seasonal distribution of pediatric SDB has not been previously studied.

Purpose of the Study:

  • To investigate the seasonal patterns of snoring and SDB severity in children.
  • To determine if seasonal factors influence the prevalence and severity of pediatric SDB.

Main Methods:

  • Retrospective analysis of data from a prospective, cross-sectional community-based study.
  • Inclusion of 1,051 children with a mean age of 7 years.
  • Assessment of snoring frequency/loudness and overnight sleep study data for seasonal variations.

Main Results:

  • Snoring frequency and loudness were significantly higher in spring and summer.
  • The mean apnea-hypopnea index (AHI) was highest in winter and spring.
  • The lowest oxygen saturation (SaO2) nadir occurred in winter and spring.

Conclusions:

  • Pediatric snoring and SDB severity exhibit distinct seasonal patterns.
  • Snoring prevalence peaks in spring-summer, while SDB severity peaks in winter-spring.
  • Seasonal viral and allergen exposure may contribute to SDB severity in children.
Abstract

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