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ORIGINAL ARTICLE
Korean J Pediatr 2014 July;57(7) :317-322.
Published online 2014 July 15.       
Prevalence of restless legs syndrome and sleep problems in Korean children and adolescents with attention deficit hyperactivity disorder: a single institution study
Soonhak Kwon1, Youngsoo Sohn1, Seong-Hoon Jeong2, Un-Sun Chung2, Hyeeun Seo3
1Departments of Pediatrics, Kyungpook National University School of Medicine, Daegu, Korea
2Departments of Psychiatry, Kyungpook National University School of Medicine, Daegu, Korea
3Department of Pediatrics, Busan St. Marys Medical Center, Busan, Korea
Corresponding Author: Hyeeun Seo ,Tel: +82-51-933-7982, Fax: +82-51-932-8600, Email: she0922@hanmail.net
Copyright © 2014 by The Korean Pediatric Society
ABSTRACT
Purpose: Attention deficit hyperactivity disorder (ADHD) is a common disorder in school-aged children. Patients with restless legs syndrome (RLS) often present with ADHD symptoms and vice versa. This study was the first to attempt to identify the prevalence of RLS and sleep problems in children with ADHD in Korea. Methods: Patients diagnosed with ADHD were asked to complete a sleep questionnaire. The sleep questionnaire included items to help identify the presence of four typical symptoms that are used as diagnostic criteria for RLS. Results: A total of 56 patients, including 51 boys and 5 girls (mean age, 10.7 years old) participated. Of these, 24 complained of pain, discomfort, or an unpleasant sensation in the legs. Based on the RLS diagnostic criteria, 2 patients were diagnosed with definite RLS and 4 with probable RLS. There were no significant differences in age, medication dosage, or neuropsychological test scores between the patients with and without RLS symptoms. Conclusion: Approximately 42.9% of patients with ADHD presented with RLS symptoms and 7.1% of these were diagnosed with RLS. Patients with ADHD also experienced various other sleep disorders. Thus, appropriate assessment and treatment for sleep disorders in patients with ADHD is essential.
Keywords: Attention deficit disorders with hyperactivity | Child | Adolescents | East Asian | Restless legs syndrome
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