Sleep Problems in Adults With ADHD: Prevalences and Their Relationship With Psychiatric Comorbidity

Area of Science:

• Neuroscience
• Psychiatry
• Sleep Medicine

Background:

• Sleep problems are prevalent in adults with Attention-Deficit/Hyperactivity Disorder (ADHD).
• Sleep disturbances may be bidirectionally linked to ADHD severity and other psychiatric conditions.
• Understanding these associations is crucial for comprehensive ADHD patient care.

Purpose of the Study:

• To determine the prevalence of various sleep disorders in a large cohort of adult ADHD patients.
• To investigate the association between positive sleep disorder screenings and psychiatric comorbidities.
• To inform integrated treatment strategies for co-occurring sleep and psychiatric issues in adults with ADHD.

Main Methods:

• Retrospective analysis of 3,691 adult ADHD patients' data from a specialized outpatient clinic.
• Utilized the Holland Sleep Disorders Questionnaire (HSDQ) for screening insomnia, parasomnia, hypersomnia, CRSD, RLS/PLMD, and SBD.
• Assessed psychiatric comorbidities using clinical evaluation and the Mini International Neuropsychiatric Interview (M.I.N.I.) Plus.

Main Results:

• Approximately 60% of adult ADHD patients screened positive for at least one sleep disorder.
• The most common sleep disorder symptoms were delayed sleep phase syndrome (DSPS) (36%), insomnia (30%), and restless legs syndrome/periodic limb movement disorder (RLS/PLMD) (29%).
• Sleep problems were significantly associated with comorbid depression, anxiety, substance use disorder, personality disorder, and post-traumatic stress disorder.

Conclusions:

• Adults with ADHD commonly experience sleep problems, frequently associated with specific psychiatric comorbidities.
• Systematic screening for sleep disorders in this population is essential for a better understanding of their clinical presentation.
• Integrated treatment approaches addressing both sleep and psychiatric problems can improve patient outcomes.