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Cross-national prevalence and correlates of adult attention-deficit hyperactivity disorder

  • John Fayyad (a1), Ron De Graaf (a2), Ronald Kessler (a3), Jordi Alonso (a4), Matthias Angermeyer (a5), Koen Demyttenaere (a6), Giovanni De Girolamo (a7), Josep Maria Haro (a8), Elie G. Karam (a9), Carmen Lara (a10), Jean-Pierre Lépine (a11), Johan Ormel (a12), José Posada-Villa (a13), Alan M. Zaslavsky (a3) and Robert Jin (a3)...

Abstract

Background

Little is known about the epidemiology of adult attention-deficit hyperactivity disorder (ADHD).

Aims

To estimate the prevalence and correlates of DSM-IV adult ADHD in the World Health Organization World Mental Health Survey Initiative.

Method

An ADHD screen was administered to respondents aged 18–44 years in ten countries in the Americas, Europe and the Middle East (n=11422). Masked clinical reappraisal interviews were administered to 154 US respondents to calibrate the screen. Multiple imputation was used to estimate prevalence and correlates based on the assumption of cross-national calibration comparability.

Results

Estimates of ADHD prevalence averaged 3.4% (range 1.2–7.3%), with lower prevalence in lower-income countries (1.9%) compared with higher-income countries (4.2%). Adult ADHD often co-occurs with other DSM-IV disorders and is associated with considerable role disability. Few cases are treated for ADHD, but in many cases treatment is given for comorbid disorders.

Conclusions

Adult ADHD should be considered more seriously in future epidemiological and clinical studies than is currently the case.

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Copyright

Corresponding author

Dr John Fayyad, Department of Psychiatry and Clinical Psychology, St George Hospital University Medical Centre, PO Box 166378, Beirut-Achrafieh 1100–2807, Lebanon. Tel: +961 (1)58 3583; fax: +961 (1)58 7190; email: jfayyad@idraac.org

Footnotes

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Declaration of interest

None. Funding detailed in Acknowledgements.

Footnotes

References

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Cross-national prevalence and correlates of adult attention-deficit hyperactivity disorder

  • John Fayyad (a1), Ron De Graaf (a2), Ronald Kessler (a3), Jordi Alonso (a4), Matthias Angermeyer (a5), Koen Demyttenaere (a6), Giovanni De Girolamo (a7), Josep Maria Haro (a8), Elie G. Karam (a9), Carmen Lara (a10), Jean-Pierre Lépine (a11), Johan Ormel (a12), José Posada-Villa (a13), Alan M. Zaslavsky (a3) and Robert Jin (a3)...

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