Meta Analysis of Variables Related to Attention Deficit Hyperactivity Disorder in School-Age Children

Abstract

Purpose: The purpose of this study was to use meta-analysis to examine recent domestic articles related to attention deficit hyperactivity disorder (ADHD) in school-age children. Methods: After reviewing 213 articles published between 1990 and 2009 from and cited in RISS, KISS, and DBpia, the researchers identified 24 studies with 440 research variables that had appropriate data for methodological study. SPSS 17.0 program was used. The outcome variables were divided into five types: Inattention, hyperactive impulsive, intrinsic, extrinsic, and academic ability variables. Results: Effects size of overall core symptoms was 0.47 which is moderate level in terms of Cohen criteria and effects size of overall negative variables related ADHD was 0.27 which is small level. The most dominant variable related to ADHD was obtained from hyperactive-impulsive (0.70). Also academic ability (0.45), inattention (0.37), and intrinsic variables (0.29) had a small effect whereas extrinsic variables (0.13) had little effect on descriptive ADHD study. Conclusion: The results reveal that ADHD core symptoms have moderate effect size and peripheral negative variables related ADHD have small effect size. To improve the reliability of the metaanalysis results by minimizing publication bias, more intervention studies using appropriate study designs should be done.

Associations between Dietary Intake and Attention Deficit Hyperactivity Disorder (ADHD) Scores by Repeated Measurements in School-Age Children

“…Scores > 19 points were considered to indicate the possible presence of ADHD subtypes: attention At each phase, the Korean version of DuPaul's rating scale, validated and standardized for Korean children [44], was used to diagnose ADHD. The ADHD rating scale involves summing the scores awarded to responses to 18 questions like the original scale [45,46], where higher scores indicate more severe ADHD symptoms. Questions were awarded 0 to 3 points; thus, the maximum possible score was 0-54 points.…”