Tourette Syndrome as an Independent Risk Factor for Subsequent Sleep Disorders in Children: A Nationwide Population-Based Case-Control Study.
Sleep. 2017 Mar 01;40(3):
Authors: Lee WT, Huang HL, Wong LC, Weng WC, Vasylenko T, Jong YJ, Lin WS, Ho SY
Abstract
Study objectives: Tourette syndrome (TS) is associated with a variety of neuropsychiatric comorbidities. However, the relationship between TS and sleep disorders in children is less investigated. This nationwide population-based case-control study aimed to determine the correlation of TS and sleep disorders in children.
Methods: Patients aged less than 18 years with newly diagnosed TS from 2001 to 2007 were collected (n = 1124) using data from Taiwan's National Health Insurance Research Database and were compared with a comparison cohort (n = 3372). The adjusted hazard ratio (aHR) for developing sleep disorders was calculated by multivariate Cox proportional hazards model.
Results: TS was more prevalent in boys, with a male to female ratio of 3.16:1. TS group also had significantly higher urbanization level of residence than controls (p < .001). The overall incidence rate of sleep disorders was 7.24‰ in children with TS, compared to 3.53‰ in controls. The TS group was associated with a significantly higher rate of sleep disorders, with a crude HR of 2.05 (95% confidence inerval [CI] = 1.43-2.95, p < .001). Among the comorbidities of TS, anxiety disorder was associated with the highest risk for sleep disorders (crude HR = 3.26, 95% CI = 1.52-7.00, p < .001). The aHR for TS cohort to develop sleep disorders was 1.72 (95% CI = 1.16-2.53, p = .007).
Conclusions: The increased risk of sleep disorders in children with TS cannot be fully attributed to its comorbidities, and TS is an independent risk factor for sleep disorders in children.
PMID: 28364427 [PubMed - in process]
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