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Published on: July 31, 2017
Prevalence of Diagnosed Sleep Disorders and Related Diagnostic and Surgical Procedures in Children with Autism
Marilisa G Elrod1, Cade M Nylund, Apryl L Susi
1*Developmental-Behavioral Pediatrics Department, Madigan Army Medical Center, Joint Base Lewis McChord, WA; †Pediatric Department, Uniformed Services University, Bethesda, MD; ‡Pediatric Otolaryngology Department, Madigan Army Medical Center, Joint Base Lewis McChord, WA; §Pediatric Department, Pediatric Subspecialty Services, Walter Reed National Military Medical Center, Bethesda, MD.
Insights
Children with autism spectrum disorder (ASD) have nearly double the risk of sleep disorder diagnoses, including sleep-disordered breathing (SDB). They also face higher rates of diagnostic tests and surgeries for these conditions compared to neurotypical children.
Area of Science:
- Pediatric Sleep Medicine
- Neurodevelopmental Disorders
Background:
- Sleep disorders are prevalent in children with autism spectrum disorder (ASD), exacerbating cognitive and behavioral challenges.
- Sleep-disordered breathing (SDB) is a treatable condition linked to behavioral issues in children.
Purpose of the Study:
- To compare the risk of sleep disorder diagnoses, including SDB, in children with ASD versus controls.
- To assess the relative risk of diagnostic and surgical procedures for sleep disorders in children with ASD.
Main Methods:
- Retrospective case-cohort study of 48,762 children with ASD (ages 2-18) within the military health system (2000-2013).
- Matched 1:5 with children without ASD by birthdate, sex, and enrollment.
- Analyzed ICD-9-CM and CPT codes for sleep disorders and related procedures; calculated relative risks (RR) using conditional Poisson regression.
Main Results:
- Children with ASD showed a significantly higher risk for any sleep disorder diagnosis (RR: 1.97) and SDB (RR: 1.96).
- Increased risk observed for polysomnography (RR: 3.74) and sleep disorder-related surgeries (RR: 1.50) in children with ASD.
Conclusions:
- Children with ASD are at elevated risk for sleep disorders, including SDB.
- They are more likely to undergo diagnostic evaluations and surgical interventions for sleep conditions compared to their peers without ASD.
Objective:
Sleep disorders are common and important comorbid conditions in children with autism spectrum disorder (ASD) and can contribute to cognitive and behavioral problems. Sleep-disordered breathing (SDB) is a diagnosable and treatable cause of behavioral problems in children. We aimed to quantify the relative risk for children with ASD versus controls of being diagnosed with sleep disorders including SDB and undergoing related diagnostic and surgical procedures.
Method:
This retrospective case-cohort study included 48,762 children with ASD aged 2 to 18 years enrolled in the military health system (MHS) from 2000 to 2013. Children with ASD were matched 1:5 by birthdate, sex, and enrollment time to children without an ASD diagnosis. The MHS database was queried for International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) codes for sleep disorders or ICD-9-CM and Current Procedural Terminology codes for diagnostic and surgical procedures. Relative risks (RR) and 95% confidence intervals (CI) were determined with binary Poisson regression conditional on the match and adjusting for confounders.
Results:
Children with ASD were at higher risk of receiving any sleep disorder diagnosis (RR: 1.97 [95% CI, 1.91-2.02]) including SDB (RR: 1.96 [95% CI, 1.88-2.05]). Children with ASD also were at increased risk of undergoing polysomnography (RR: 3.74 [95% CI, 3.56-3.93]) and sleep disorder-related surgery (RR: 1.50 [95% CI, 1.46-1.54]).
Conclusion:
Children with ASD are more likely to be given a sleep disorder diagnosis including SDB and are more likely to undergo related diagnostic and surgical procedures compared with controls without ASD.
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