Privacy-preserving Statistical Query and Processing on Distributed OpenEHR Data.

Unlabelled: Reuse of data from EHRs is essential for many purposes. The objective of the study was to explore how distributed electronic health record (EHR) data can be reused for privacy-preserving statistical query and processing.

Method: We have designed and created a proof of concept prototype solution based on the OpenEHR specification to ensure interoperability and to query the EHRs.