Bipolar disorders in Australia: A population-based study of excess costs

Abstract

Objective To estimate the excess costs associated with bipolar disorders in Australia, based on prevalence (using the Mood Disorder Questionnaire (MDQ)) and associated excess burden-of-illness costs. Methods Using data from the 2004 South Australian Health Omnibus Survey (HOS), a weighted cross-sectional survey of 3,015 adults, excess costs were estimated from health service utilisation. Results There was a 2.5% lifetime prevalence of bipolar disorders, delineated by the MDQ. Those persons (MDQ positive) reported a significantly greater use of services and a poorer health status and quality of life than those who were MDQ negative. Using the service provision perspective, excess costs of bipolar disorders in Australia were approx $3.97–$4.95 billion. Conclusions These results from an Australian population demonstrate the significant economic burden of bipolar disorders. Our findings emphasise the need for further evaluation of the cost-effectiveness of different treatments, or alternative means of reducing the burden borne by individuals, the health system and the general community.