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. 2012 Sep;126(3):219-28.
doi: 10.1111/j.1600-0447.2012.01855.x. Epub 2012 Mar 22.

The prevalence and correlates of intermittent explosive disorder in Iraq

A Al-Hamzawi  1 , J K Al-Diwan, S M Al-Hasnawi, N I Taib, S Chatterji, I Hwang, R C Kessler, K A McLaughlin
Affiliations

The prevalence and correlates of intermittent explosive disorder in Iraq

A Al-Hamzawi et al. Acta Psychiatr Scand. 2012 Sep.

Abstract

Objective: Intermittent explosive disorder is common, begins early in life, and is associated with considerable impairment in the United States. The epidemiology of IED outside the United States is unknown. We examined the prevalence and correlates of IED in Iraq, where exposure to violence has been widespread during the last three decades.

Method: Data were drawn from a national survey of the Iraq population, the Iraq Mental Health Survey (IMHS), conducted in 2006-2007. The WHO Composite International Diagnostic interview was used to assess DSM-IV disorders, including IED. The response rate was 95.2%.

Results: Lifetime and 12-month prevalence estimates of IED were 1.7% and 1.5%. Mean age of onset was 18.5. The mean number of lifetime attacks was 141.6 attacks, and IED-related injuries occurred 61 times per 100 lifetime cases. IED was significantly comorbid with mood and anxiety, but not substance, disorders.

Conclusion: Although the prevalence of IED is lower in Iraq than in the United States, the disorder has an early age of onset, is highly persistent, and is associated with substantial comorbidity and functional impairment. Iraq lacks national policies or systematic programmes to reduce aggression, highlighting the importance of implementing violence prevention programmes to reduce the societal burden of violence in Iraq.

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Conflict of interest statement

Declaration of Interest

Dr. Kessler has been a consultant for AstraZeneca, Analysis Group, Bristol-Myers Squibb, Cerner-Galt Associates, Eli Lilly & Company, GlaxoSmithKline Inc., HealthCore Inc., Health Dialog, Integrated Benefits Institute, John Snow Inc., Kaiser Permanente, Matria Inc., Mensante, Merck & Co, Inc., Ortho-McNeil Janssen Scientific Affairs, Pfizer Inc., Primary Care Network, Research Triangle Institute, Sanofi-Aventis Groupe, Shire US Inc., SRA International, Inc., Takeda Global Research & Development, Transcept Pharmaceuticals Inc., and Wyeth-Ayerst; has served on advisory boards for Appliance Computing II, Eli Lilly & Company, Mindsite, Ortho-McNeil Janssen Scientific Affairs, Plus One Health Management and Wyeth-Ayerst; and has had research support for his epidemiological studies from Analysis Group Inc., Bristol-Myers Squibb, Eli Lilly & Company, EPI-Q, GlaxoSmithKline, Johnson & Johnson Pharmaceuticals, Ortho-McNeil Janssen Scientific Affairs., Pfizer Inc., Sanofi-Aventis Groupe, and Shire US, Inc. The remaining authors report nothing to disclose.

Figures

Figure 1
Figure 1
Age of onset distributions of narrow and broad-only lifetime DSM-IV intermittent explosive disorder (n=4332)
See this image and copyright information in PMC

References

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