Sleep Sufficiency in Pediatric and Adolescent Tourette's Disorder: National Survey of Children's Health.
Emily J Ricketts, Michelle Rozenman, Caitlin Choy and 5 others
PMID 29095747WHAT IT FOUND
Parents reported children with Tourette's disorder or a history of Tourette's disorder had 1.5 fewer nights of sufficient sleep per week, out of 7 nights, than matched controls.
Comorbidity and medication status did not predict sleep in current Tourette's disorder.
Key findings
01Youth with current Tourette's disorder and youth with a history of Tourette's disorder were reported to have 1.5 fewer nights of sufficient sleep per week, out of 7 nights, than matched controls.
02Among males with mild Tourette's disorder, older adolescents had fewer nights of sufficient sleep than children and early adolescents, with reported mean differences of 1.51 and 1.28 nights.
03Comorbidity type and medication status did not significantly predict nights of sufficient sleep in youth with current Tourette's disorder.
STILL TO COME
How it was doneWhat they found
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What it does not show
The Tourette's diagnosis was parent-reported and not confirmed by a health professional. Sleep was also parent-reported, with no child report or objective sleep measure. Past-week sleep ratings were retrospective and could be affected by recall bias. Tourette's severity was measured by one broad question, mild, moderate, or severe, rather than by tic number, frequency, intensity, complexity, or interference. Severity was not assessed for youth with a history of Tourette's disorder, limiting that part of the analysis. Because the data were cross-sectional, the study cannot show whether sleep problems and Tourette's symptoms influence each other.
Declared interests
The National Survey of Children's Health was funded by the United States Department of Health and Human Services, Health Resources and Services Administration, and Maternal and Child Health Bureau, and conducted by the Centers for Disease Control and Prevention's National Center for Health Statistics. Dr. Ricketts receives research support from a National Institute of Mental Health T32 institutional training grant and grant funding from the Tourette Association of America. Dr. Piacentini receives grant support from Pfizer. Dr. McCracken has served as a consultant for Roche Neuroscience and Dart NeuroScience LLC, has received research grants from Roche Neuroscience, and has received study drug from Shire and AstraZeneca; his spouse has received grant support from Merck Foundation. All other authors declared no conflicts of interest.
The easy way to misread this
Do not read the sleep difference as evidence that Tourette's disorder causes poor sleep, or that treating tics will improve sleep. The study is cross-sectional, parent-reported, and did not confirm diagnoses, so it cannot establish cause.