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Prevalence and risk factors of habitual snoring in primary school children
Albert M Li1, Chun T Au, Hung K So
1Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, Hong Kong. albertmli@cuhk.edu.hk
Insights
Habitual snoring (HS) affects 7.2% of primary school children, increasing risks for behavioral issues and poor school performance. Identifying risk factors like obesity and parental HS is crucial for early intervention.
Area of Science:
- Pediatric Sleep Medicine
- Respiratory Health in Children
- Childhood Neurobehavioral Outcomes
Background:
- Habitual snoring (HS) is a common issue in children, potentially linked to various health and behavioral problems.
- Understanding the prevalence and associated factors of HS in pediatric populations is essential for public health initiatives.
Purpose of the Study:
- To determine the prevalence of habitual snoring (HS) in primary school-aged children.
- To identify risk factors and associated diurnal symptoms and conditions linked to HS in this age group.
Main Methods:
- A cross-sectional study utilizing validated parental questionnaires.
- Data collected from 6,349 Chinese children aged 5-14 years across 13 randomly selected primary schools.
- Analysis included assessment of sleep behaviors, daytime symptoms, and medical history.
Main Results:
- The prevalence of habitual snoring (HS) was found to be 7.2%.
- Independent risk factors for HS included male sex, higher BMI z-score, parental HS, allergic rhinitis, asthma, nasosinusitis, and tonsillitis.
- HS was significantly associated with sleep-related breathing symptoms, temper issues, hyperactivity, and poor school performance.
Conclusions:
- Habitual snoring (HS) is a prevalent issue in primary school children with significant associated risks.
- Key risk factors include male sex, obesity, parental HS, atopic conditions, and upper respiratory infections.
- HS is linked to sleep-disordered breathing and adverse neurobehavioral outcomes, highlighting the need for clinical attention.
Objective:
Our study aimed to determine the prevalence of habitual snoring (HS) in primary school children and to evaluate the diurnal symptoms and conditions that may be associated with it.
Methods:
A validated questionnaire completed by parents was used to assess the sleep and daytime behaviors of Chinese children aged 5 to 14 years. Thirteen primary schools in two representative districts were randomly selected.
Results:
A total of 6,349 out of 9,172 questionnaires (response rate 69.2%) with complete answers were returned. The prevalence rate of HS was 7.2%. Male sex (odds ratio [OR] [95% CI]: 2.5 [1.7-3.6]), BMI z score (OR [95% CI]: 1.4 [1.1-1.6]), maternal HS (OR [95% CI]: 3.4 [2.0-5.7]), paternal HS (OR [95% CI]: 3.8 [2.7-5.5]), allergic rhinitis (OR [95% CI]: 2.9 [2.0-4.2]), asthma (OR [95% CI]: 2.4 [1.2-5.2]), nasosinusitis (OR [95% CI]: 4.0 [1.5-10.6]), and tonsillitis (OR [95% CI]: 3.1 [1.9-5.1]) in the past 12 months were identified to be independent risk factors associated with HS. HS was also associated with daytime, nocturnal, parasomniac, and sleep-related breathing symptoms. HS was demonstrated to be an independent risk factor for parent-reported poor temper (OR [95% CI]: 1.9 [1.4-2.5]), hyperactivity (OR [95%CI]: 1.7 [1.2-2.5]), and poor school performance (OR [95% CI]: 1.7 [1.2-2.5]).
Conclusions:
HS was a significant and prevalent problem in primary school children. Male sex, obesity, parental HS, atopic symptoms, and history of upper respiratory infections were significant risk factors. HS was also associated with sleep-disordered breathing symptoms and adverse neurobehavioral outcomes.
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