Sébastien Weibel1, Françoise Jermann2, Luisa Weiner3, Rosetta Nicastro2, Stefano Ardu4, Eleonore Pham2, Roland Hasler2, Alexandre Dayer5, Paco Prada2, Nader Perroud5. 1. Service of psychiatric specialties, Department of mental Health and Psychiatry, University Hospital of Geneva, Geneva, Switzerland. Electronic address: weibelse@gmail.com. 2. Service of psychiatric specialties, Department of mental Health and Psychiatry, University Hospital of Geneva, Geneva, Switzerland. 3. Department of Psychiatry, Mental Health and Addictology, University Hospital of Strasbourg, Strasbourg, France. 4. Department of Cariology and Endodontology, Treatment Plan Unit and Division of Operative Dentistry, Dental School, University of Geneva, Geneva, Switzerland. 5. Service of psychiatric specialties, Department of mental Health and Psychiatry, University Hospital of Geneva, Geneva, Switzerland; Department of Psychiatry, University of Geneva, Geneva, Switzerland.
Abstract
OBJECTIVES: Many adults with attention-deficit/hyperactivity disorder (ADHD) report sleeping difficulties. The relationship between sleep and ADHD is poorly understood, and shows discrepancies between subjective and objective measures. In order to determine the specificity of sleep-associated symptoms in ADHD, subjective sleep assessments among ADHD adult patients were compared with control subjects and with individuals suffering from borderline personality disorder (BPD). METHODS: 129 outpatients with ADHD, 70 with BPD (including 17 patients with BPD and ADHD comorbidity), and 65 control participants were assessed for sleep quality, insomnia, and sleepiness, using the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity Index (ISI), and the Epworth Sleepiness Scale (ESS). RESULTS: ADHD- and BPD-sufferers achieved higher insomnia and lower sleep quality scores than control subjects. Clinical groups did not differ in terms of sleep quality, although insomnia was more severe among BPD patients. Depression scores explained most of sleep symptoms, but even when controlling for depression, ADHD sufferers showed higher sleep latency. Inattentive symptoms were associated with somnolence, while hyperactive/impulsive symptoms were associated with insomnia and lower sleep efficiency. CONCLUSION: Sleep-related symptoms associated with ADHD were partly explained by non-specific factors, especially depression symptoms. In a dimensional perspective, hyperactive and inattentive symptoms were associated with specific sleep symptoms.
OBJECTIVES: Many adults with attention-deficit/hyperactivity disorder (ADHD) report sleeping difficulties. The relationship between sleep and ADHD is poorly understood, and shows discrepancies between subjective and objective measures. In order to determine the specificity of sleep-associated symptoms in ADHD, subjective sleep assessments among ADHD adult patients were compared with control subjects and with individuals suffering from borderline personality disorder (BPD). METHODS: 129 outpatients with ADHD, 70 with BPD (including 17 patients with BPD and ADHD comorbidity), and 65 control participants were assessed for sleep quality, insomnia, and sleepiness, using the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity Index (ISI), and the Epworth Sleepiness Scale (ESS). RESULTS:ADHD- and BPD-sufferers achieved higher insomnia and lower sleep quality scores than control subjects. Clinical groups did not differ in terms of sleep quality, although insomnia was more severe among BPD patients. Depression scores explained most of sleep symptoms, but even when controlling for depression, ADHD sufferers showed higher sleep latency. Inattentive symptoms were associated with somnolence, while hyperactive/impulsive symptoms were associated with insomnia and lower sleep efficiency. CONCLUSION: Sleep-related symptoms associated with ADHD were partly explained by non-specific factors, especially depression symptoms. In a dimensional perspective, hyperactive and inattentive symptoms were associated with specific sleep symptoms.