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Objective: The purpose is to answer the following research question: are the time-series data published by the Australian Bureau of Statistics for Queensland statistically the same as those of the Queensland Suicide Register? Method: This question was answered by first modelling statistically, for males and females, the time series suicide data from these two sources for the period of data availability, 1994 to 2007 (14 observations). Fitted values were then derived from the ‘best fit’ equations, after rigorous diagnostic testing. The outliers in these data sets were addressed with pulse dummy variables. Finally, by applying the Wald test to determine whether or not the fitted values are the same, we determined whether, for males and females, these two data sets are the same or different. Results: The study showed that the Queensland suicide rate, based on Queensland Suicide Register data, was greater than that based on Australian Bureau of Statistics data. Further statistical testing showed that the differences between the two data sets are statistically significant for 24 of the 28 pair-wise comparisons. Conclusions: The quality of Australia's official suicide data is affected by various practices in data collection. This study provides a unique test of the accuracy of published suicide data by the Australian Bureau of Statistics. The Queensland Suicide Register's definition of suicide applies a more suicidological, or medical/health, conception of suicide, and applies different practices of coding suicide cases, timing of data collection processes, etc. The study shows that ‘difference’ between the two data sets predominates, and is statistically significant; thus the extent of the under-reporting of suicide is not trivial. Given that official suicide data are used for many purposes, including policy evaluation of suicide prevention programmes, it is suggested that the system used in Queensland should be adopted by the rest of Australia too. [ABSTRACT FROM AUTHOR]

Objectives: This paper reports on changes, over time and between states, in the use of electroconvulsive therapy (ECT) in the private psychiatric sector in Australia between 1984 and 2004. Method: Data for ECT services, and all specialist psychiatry services provided under the Medicare system, have been analysed in absolute numbers and as utilization rates. Results: Changes in the use of ECT over time are different from other services provided by private psychiatrists. As in other countries, the use of ECT initially declined in period studied but has increased in recent years. In addition, there is a clear pattern of differential use of ECT between the states and territories. Conclusions: This descriptive study cannot ‘explain’ the results obtained: other data, incorporated into an explanatory model using regression analysis, are needed to determine the factors underlying the utilization patterns obtained in this study. Thus, further work is needed. Furthermore, it is important to analyse data at a lower level of geographical aggregation than that of the state/territory: this (state/territory) aggregation conceals differences in utilization between metropolitan, minor city, rural and remote regions of the country. [ABSTRACT FROM AUTHOR]

Objective: To determine the role of the National Mental Health Strategy in the deinstitutionalization of patients in psychiatric hospitals in Queensland. Method: Regression analysis (using the maximum likelihood method) has been applied to relevant time-series datasets on public psychiatric institutions in Queensland. In particular, data on both patients and admissions per 10 000 population are analysed in detail from 1953–54 to the present, although data are presented from 1883–84. Results: These Queensland data indicate that deinstitutionalization was a continuing process from the 1950s to the present. However, it is clear that the experience varied from period to period. For example, the fastest change (in both patients and admissions) took place in the period 1953–54 to 1973–74, followed by the period 1974–75 to 1984–85. Conclusions: In large part, the two policies associated with deinstitutionalization, namely a discharge policy (‘opening the back door’) and an admission policy (‘closing the front door’) had been implemented before the advent of the National Mental Health Strategy in January 1993. Deinstitutionalization was most rapid in the 30-year period to the early 1980s: the process continued in the 1990s, but at a much slower rate. Deinstitutionalization was, in large part, over before the Strategy was developed and implemented. [ABSTRACT FROM AUTHOR]