Sleep-Related Problems in Youth with Tourette's Syndrome and Chronic Tic Disorder

This study reports the prevalence and symptom correlates of sleep related problems (SRPs) in a sample of young people with Tourette's Syndrome (TS) or Chronic Tic Disorder. Fifty-six young people (and one of their parents) with a tic disorder were administered the Yale Global Tic Severity Scale. Children completed the Pediatric Quality of Life Inventory and Multidimensional Anxiety Scale for Children. Parents completed the Pediatric Quality of Life Inventory - Parent Proxy and Child Behavior Checklist. Overall, SRPs were widely endorsed, with 80.4% experiencing at least one SRP and 19.7% experiencing four or more. SRPs were negatively associated with quality of life and positively associated with internalising and externalising behaviours. Children with comorbid anxiety disorders had more SRPs than those without. We conclude by recommending that SRPs be assessed in young people with tics (particularly when comorbid anxiety is present), and highlight the role of psychotherapeutic and pharmacological intervention in reducing SRPs.