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Fig. 4 | BMC Medical Informatics and Decision Making

Fig. 4

From: Composite CDE: modeling composite relationships between common data elements for representing complex clinical data

Fig. 4

Creation of a dictionary cCDE for a CRF. a The ā€˜Electrolyte Laboratory Testsā€™ table on a clinical document is provided as an example tabular data-entry document to capture laboratory test results for sodium (Na+) and potassium (K+) along with two clinical evaluation attributes. b We constructed the ā€˜Electrolyte Laboratory Tests Dictionaryā€™ table by extracting the relevant attributes from the CDEs defined in the ā€˜Recommended Labs for Strokeā€™ from the NINDS CDE project. c The dictionary cCDE (DE:47571) consists of six aCDEs that include a variable aCDE (DE:43938) that relates the dictionary cCDE to the dictionary table in Fig. 4b. Two rules for clinical evaluation are presented (http://chmr2.snubi.org:8083/chmr/data_element_view.jsp?id=28445)

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