Objective: To measure the prevalence of habitual snoring and sleep-disordered breathing in preschool-aged children. Study design: Cross-sectional survey with parental report and overnight ambulatory monitoring of children 3 to 6 years of age in 8 kindergartens (n = 604). Parents reported the child's information through an interviewer-based questionnaire or by a brief telephone interview. Snoring, oxygen saturation, body position, and heart rate were recorded for 1 night at home. Results: Data were obtained on 98.5% of 604 children (447 questionnaires, 74%; 148 telephone interviews, 24.5%); groups were similar for sex and age. Two hundred sixty-five children had ambulatory monitoring at home. Habitual snoring (always and often) was reported in 34.5% and breathing cessation in 18.6%. Habitual snoring was associated with parental report of daytime symptoms (P = .001) and daytime somnolence (P = .032). Pathologic snoring was present in 12% of children (95% CI, 7.9-16.1). On multivariate analysis, parental report of habitual snoring was the strongest determinant of pathologic snoring (OR, 12.23; 95% CI, 3.56-41.94). Oxygen desaturation index ≥5 per hour was found in 13% of children (95% CI, 8.7-17.3). Conclusions: Parental report of habitual snoring is very common. Children with habitual snoring are more likely to have objectively measured snoring and daytime morbidity.
The Journal of Pediatrics Vol. 142, Issue 4, p. 377-382