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Prevalence and correlates of adult attention-deficit hyperactivity disorder: meta-analysis
Viktória Simon1, Pál Czobor, Sára Bálint
1Semmelweis University Budapest, Department of Psychiatry and Psychotherapy, Balassa u. 6, Budapest H-1083, Hungary. simonviktoria@psych.sote.hu
Background:
In spite of the growing literature about adult attention-deficit hyperactivity disorder (ADHD), relatively little is known about the prevalence and correlates of this disorder.
Aims:
To estimate the prevalence of adult ADHD and to identify its demographic correlates using meta-regression analysis.
Method:
We used the MEDLINE, PsycLit and EMBASE databases as well as hand-searching to find relevant publications.
Results:
The pooled prevalence of adult ADHD was 2.5% (95% CI 2.1-3.1). Gender and mean age, interacting with each other, were significantly related to prevalence of ADHD. Meta-regression analysis indicated that the proportion of participants with ADHD decreased with age when men and women were equally represented in the sample.
Conclusions:
Prevalence of ADHD in adults declines with age in the general population. We think, however, that the unclear validity of DSM-IV diagnostic criteria for this condition can lead to reduced prevalence rates by underestimation of the prevalence of adult ADHD.
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