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Bipolar I and II disorders in a random and representative Australian population


  • Robert D. Goldney,

  • Laura J. Fisher,

  • Eleonora Dal Grande,

  • Anne W. Taylor,

  • Graeme Hawthorne

  • Laura J. Fisher, Research Officer
    The Adelaide Clinic, Adelaide, Australia

  • Eleonora Dal Grande, Senior Epidemiologist; Anne W. Taylor, Manager
    Department of Health, Population Research and Outcome Studies Unit, Adelaide, Australia

  • Graeme Hawthorne, Associate Professor
    Department of Psychiatry, Australian Centre for Posttraumatic Mental Health, University of Melbourne, Melbourne, Australia

Robert D. Goldney, Professor (Correspondence)
Department of Psychiatry, University of Adelaide, The Adelaide Clinic, 33 Park Terrace, Gilberton, South Australia 5081, Australia. Email:


Objective: To assess the prevalence of bipolar I and II disorders in an Australian population.

Method: The Mood Disorder Questionnaire (MDQ) was administered to 3015 respondents in a random and representative sample in South Australia. Health status, quality of life and demographic data were also collected.

Results: There was a 2.5% lifetime prevalence of bipolar I and II disorders delineated by the MDQ. Those people had a significantly greater use of services and a poorer health status and quality of life than those who were MDQ-negative.

Conclusions: These results in an Australian population are consistent with other international studies showing a greater prevalence of bipolar disorders than hitherto appreciated.