Abstract
Objective With the abundance of clinical data collection in modern digital hospitals, electronic health records (EHR) has become a tool for clinical and genomic research. In this study, we aim to make an aggregated EHR framework leveraging datasets either within or across consolidated clinical document architecture (C-CDA), and show its primary experiment results in a localized Chinese EHR development. Methods A total 53 templates released by China were integrated for this experiment, the aggregated EHR template construction was based on the existing mature international standards, the three-tier architecture ISO/HL7 CDA R2, and the HL7 RIM model. A series of tools were used in this experiment to integrate data from heterogeneous systems via C-CDA. Results After designing and modeling, the aggregated EHR could be displayed in html on the browser or XSLT-compatible application. The designed aggregated EHR document was composed of five layers such as document, component, section, entry, data element. Conclusions In conclusion, our proposed aggregated EHR in compliance with C-CDA framework could leverage EHR adoption efficiency in the future.
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