Introduction: The Australian Government has provided $20 million to establish the Population Health Research Network (PHRN), with representation from all States and Territories to facilitate population health research through data linkage. Health LinQ is part of the Queensland node involving four Queensland universities, Queensland Health and the Australian e-Health Research Centre.
Method: This paper reviews the potential for using administrative databases to study the mental health experience of Indigenous Queenslanders. Researchers can define cohorts for study within the administrative data or link them to their own data. Robust protocols preserve confidentiality so that researchers only receive anonymized data. Indigenous status can be defined either through place of residence or through the recording of Indigenous status in datasets such as the Queensland Hospital Admitted Patient Data Collection.
Results: Available data include hospital morbidity, mental health data and mortality. Indigenous status is correctly identified in about 89% of cases with variation by definition used.
Conclusions: Administrative data provide researchers and decision makers with accessible, cost-effective information without the intrusion and cost of additional data collection. These techniques are especially useful in studying regional, rural and remote populations where access may be difficult.