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Eur Child Adolesc Psychiatry. 2008 Mar;17(2):73-81. Epub 2007 Sep 14.

Treatment of attention deficit hyperactivity disorder in children. Predictors of treatment outcome.

Author information

1
Dept. of Clinical Psychology, University of Amsterdam, Roeterstraat 15, Amsterdam 1018 WB, The Netherlands. s.vanderoord@uva.nl

Abstract

OBJECTIVE:

The present study investigated the predictive power of anxiety, IQ, severity of ADHD and parental depression on the outcome of treatment in children with ADHD.

METHOD:

Fifty children with ADHD (ages 8-12) were randomized to a 10-week treatment of methylphenidate or to a treatment of methylphenidate combined with multimodal behavior therapy. Prior to treatment predictors were assessed. Outcome was assessed separately for parents and teachers on a composite measure of inattentive, hyperactive, oppositional- and conduct disorder symptoms.

RESULTS:

There was neither a significant difference between the two treatments at baseline nor did treatment condition predict outcome. Therefore the data were collapsed across the two treatments. A combination of anxiety and IQ predicted teacher-rated outcome, explaining 18% of the variance. Higher anxiety and higher IQ's indicated better treatment outcome. There were no significant predictors of the parent-rated outcome.

CONCLUSION:

This study showed a small but significant predictive effect of IQ and anxiety on treatment outcome in children with ADHD.

CLINICAL IMPLICATIONS:

This study supports the idea that for the treatment of ADHD children with comorbid anxiety and higher IQ respond better to the two most used treatments for ADHD.

PMID:
17876505
DOI:
10.1007/s00787-007-0638-8
[Indexed for MEDLINE]

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