Limited privacy protection and poor sensitivity: Is it time to move on from the statistical linkage key-581?
|dc.identifier.citation||Randall, S. and Ferrante, A. and Boyd, J. and Brown, A. and Semmens, J. 2016. Limited privacy protection and poor sensitivity: Is it time to move on from the statistical linkage key-581?. Health Information Management Journal. 45 (2): pp. 71-79.|
Background: The statistical linkage key (SLK-581) is a common tool for record linkage in Australia, due to its ability to provide some privacy protection. However, newer privacy-preserving approaches may provide greater privacy protection, while allowing high-quality linkage. Objective: To evaluate the standard SLK-581, encrypted SLK-581 and a newer privacy-preserving approach using Bloom filters, in terms of both privacy and linkage quality. Method: Linkage quality was compared by conducting linkages on Australian health datasets using these three techniques and examining results. Privacy was compared qualitatively in relation to a series of scenarios where privacy breaches may occur. Results: The Bloom filter technique offered greater privacy protection and linkage quality compared to the SLK-based method commonly used in Australia. Conclusion: The adoption of new privacy-preserving methods would allow both greater confidence in research results, while significantly improving privacy protection.
|dc.publisher||Health Information Management Association of Australia|
|dc.title||Limited privacy protection and poor sensitivity: Is it time to move on from the statistical linkage key-581?|
|dcterms.source.title||Health Information Management Journal|
|curtin.department||Centre for Population Health Research|
|curtin.accessStatus||Fulltext not available|
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