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Ethnic comparisons of the 12 month prevalence of mental disorders and treatment contact in Te Rau Hinengaro: the New

Joanne Baxter1, Jesse Kokaua, J Elisabeth Wells

  • 1Ngai Tahu Māori Health Research Unit, Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand. joanne.baxter@stonebow.otago.ac.nz

The Australian and New Zealand Journal of Psychiatry
|September 9, 2006
PubMed
Summary

Māori and Pacific people experience higher rates of mental disorders than other ethnic groups in New Zealand. However, Pacific people and Māori are less likely to access mental health services compared to others.

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Area of Science:

  • Mental Health Research
  • Epidemiology
  • Sociology

Background:

  • Mental health disparities exist across ethnic groups.
  • Understanding these disparities is crucial for equitable healthcare.

Purpose of the Study:

  • To compare the 12-month prevalence of mental disorders and treatment contact among Māori, Pacific people, and Other ethnic groups in New Zealand.
  • To identify ethnic variations in mental healthcare access.

Main Methods:

  • Utilized data from Te Rau Hinengaro: The New Zealand Mental Health Survey (2003-2004).
  • Conducted a nationally representative face-to-face household survey of 12,992 adults.
  • Employed the World Health Organization World Mental Health Survey Initiative version of the Composite International Diagnostic Interview (CIDI 3.0) for disorder assessment.

Main Results:

  • Māori (29.5%) and Pacific people (24.4%) showed higher 12-month prevalence of mental disorders than Others (19.3%).
  • After adjustments for sociodemographic factors, these differences decreased but remained significant.
  • Pacific people (25.4%) and Māori (32.5%) had lower service contact rates for mental health issues compared to Others (41.1%), irrespective of need.

Conclusions:

  • Māori and Pacific people exhibit a higher prevalence of mental disorders.
  • Sociodemographic factors partially explain these ethnic differences in disorder prevalence.
  • Pacific people and Māori are underserved, with lower rates of mental health service utilization relative to their needs.