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Lifetime and 12-month prevalence of mental disorders in the Nigerian Survey of Mental Health and Well-Being

  • Oye Gureje (a1), Victor O. Lasebikan (a1), Lola Kola (a2) and Victor A. Makanjuola (a3)
Abstract
Background

Large-scale community studies of the prevalence of mental disorders using standardised assessment tools are rare in sub-Saharan Africa.

Aims

To conduct such a study.

Method

Multistage stratified clustered sampling of households in the Yoruba-speaking parts of Nigeria. Face-to-face interviews used the World Mental Health version of the Composite International Diagnostic Interview (WMH-CIDI).

Results

Of the 4984 people interviewed (response rate 79.9%), 12.1% had a lifetime rate of at least one DSM–IV disorder and 5.8% had 12-month disorders. Anxiety disorders were the most common (5.7% lifetime, 4.1% 12-month rates) but virtually no generalised anxiety or post-traumatic stress disorder were identified. Of the 23% who had seriously disabling disorders, only about 8% had received treatment in the preceding 12 months. Treatment was mostly provided by general medical practitioners; only a few were treated by alternative practitioners such as traditional healers.

Conclusions

The observed low rates seem to reflect demographic and ascertainment factors. There was a large burden of unmet need for care among people with serious disorders.

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Copyright
Corresponding author
Professor Oye Gureje, Department of Psychiatry, University College Hospital, PMB 5116, Ibadan, Nigeria. Tel: +2342 2410 146; e-mail: ogureje@comui.edu.ng
Footnotes
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Declaration of interest

None. Funding detailed in Acknowledgements.

Footnotes
References
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The British Journal of Psychiatry
  • ISSN: 0007-1250
  • EISSN: 1472-1465
  • URL: /core/journals/the-british-journal-of-psychiatry
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Lifetime and 12-month prevalence of mental disorders in the Nigerian Survey of Mental Health and Well-Being

  • Oye Gureje (a1), Victor O. Lasebikan (a1), Lola Kola (a2) and Victor A. Makanjuola (a3)
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