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. 2012 Sep;130(3):382-9.
doi: 10.1542/peds.2012-0045. Epub 2012 Aug 13.

Persistent snoring in preschool children: predictors and behavioral and developmental correlates

Dean W Beebe  1 , Joseph Rausch, Kelly C Byars, Bruce Lanphear, Kimberly Yolton
Affiliations

Persistent snoring in preschool children: predictors and behavioral and developmental correlates

Dean W Beebe et al. Pediatrics. 2012 Sep.

Abstract

Objective: To clarify whether persistent snoring in 2- to 3-year-olds is associated with behavioral and cognitive development, and to identify predictors of transient and persistent snoring.

Methods: Two hundred forty-nine mother/child pairs participated in a prospective birth cohort study. Based upon parental report of loud snoring ≥ 2 times weekly at 2 and 3 years of age, children were designated as nonsnorers, transient snorers (snored at 2 or 3 years of age, but not both), or persistent snorers (snored at both ages). We compared groups by using validated measures of behavioral and cognitive functioning. Potential predictors of snoring included child race and gender, socioeconomic status (parent education and income), birth weight, prenatal tobacco exposure (maternal serum cotinine), childhood tobacco exposure (serum cotinine), history and duration of breast milk feeding, and body mass relative to norms.

Results: In multivariable analyses, persistent snorers had significantly higher reported overall behavior problems, particularly hyperactivity, depression, and inattention. Nonsnorers had significantly stronger cognitive development than transient and persistent snorers in unadjusted analyses, but not after demographic adjustment. The strongest predictors of the presence and persistence of snoring were lower socioeconomic status and the absence or shorter duration of breast milk feeding. Secondary analyses suggested that race may modify the association of childhood tobacco smoke exposure and snoring.

Conclusions: Persistent, loud snoring was associated with higher rates of problem behaviors. These results support routine screening and tracking of snoring, especially in children from low socioeconomic backgrounds; referral for follow-up care of persistent snoring in young children; and encouragement and facilitation of infant breastfeeding.

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Figures

FIGURE 1
FIGURE 1
Association between snoring group and behavioral and emotional functioning in the “at risk” range or worse (BASC-2 T score > 60). χ2 results: *P < .05, **P < .01, ***P = .001. BASC-2, Behavior Assessment System for Children, second edition.
FIGURE 2
FIGURE 2
Association between breast feeding duration and the presence and persistence of snoring at 2 to 3 years of age.
See this image and copyright information in PMC

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