title: [Effects of Cognitive Behavioral Therapy on Attention Deficit Hyperactivity Disorder among School-aged Children in Korea: A Meta-Analysis].
abstract: OBJECTIVE
  This study was a meta-analysis designed to identify effects of Cognitive Behavioral Therapy (CBT) interventions in alleviating main symptoms of Attention Deficit Hyperactivity Disorder (ADHD) among school-aged children in Korea.
  
  
  METHODS
  Examination of several databases including Research Information Sharing Service, Korean Studies Information Service System, Data Base Periodical Information Academic and hand-searched article references, resulted in identification of 1,298 studies done between 2000 and 2013 of which 21 met the inclusion criteria. Comprehensive Meta-Analysis version 2.0 was used to analyze effect sizes, explore possible causes of heterogeneity, and check publication bias with a funnel plot and its trim-and-fill analysis.
  
  
  RESULTS
  Overall effect size of CBT intervention was large (g=1.08) along with each outcome of self-control (g=1.26), lack of attention (g=1.02), social skills (g=0.92), and hyperactivity (g=0.92). For heterogeneity, moderator analysis was performed, but no significant differences were found between the RCT (Randomized Controlled Trials) group and the NRCT (Non RCT) group. Also, meta-regression was performed using sample size, number of sessions, and length of session as predictors, but no statistically significant moderators were found. Finally, a funnel plot along with trim-and-fill analysis was produced to check for publication bias, but no significant bias was detected.
  
  
  CONCLUSIONS
  Based on these findings, there is clear evidence that CBT intervention has significant positive effects on the main symptoms of school-aged children suffering ADHD. Further research is needed to target diverse age groups with ADHD along with more RCT studies to improve the effectiveness of the CBT intervention.
authors.affiliation: College of Nursing; Research Institute of Nursing Science, Kyungpook National University, Daegu, Korea.
authors.forename: Wan-Ju
authors.initials: WJ
authors.lastname: Park
authors.affiliation: College of Nursing; Research Institute of Nursing Science, Kyungpook National University, Daegu, Korea.
authors.forename: Shin-Jeong
authors.initials: SJ
authors.lastname: Park
authors.affiliation: College of Social Sciences, Kyungpook National University, Daegu, Korea. sungdong@knu.ac.kr.
authors.forename: Sung-Dong
authors.initials: SD
authors.lastname: Hwang
mesh_terms: D001288:Attention; D001289:Attention Deficit Disorder with Hyperactivity / Q000628:therapy*; D002648:Child; D015928:Cognitive Behavioral Therapy; D016208:Databases, Factual; D006801:Humans; D011595:Psychomotor Agitation; D056910:Republic of Korea; D000068356:Self-Control / Q000523:psychology; D066107:Social Skills
keywords: Attention deficit hyperactivity disorder; Cognitive behavioral therapy; Meta-analysis