Evaluating a Hierarchical Clinical Event Linkage Model for Clinic-Specific Databases.
A relational database model is presented that stores the hierarchical linkages between clinical events with qualifier codes, such that the explicit contextual meaning of an event's attributes is preserved upon retrieval. A retrospective analysis of 302 forms built upon the model showed that 91% of 17,899 data elements requested by clinicians and researchers from 19 clinics were successfully represented, but that 62% were never used more than once. These results reinforce the specificity of clinic-specific databases and the need for unambiguous, explicitly-stored clinical data.
Health Informatics Research, University Health Network, Toronto, ON Canada.
Justin
J
Liu
Health Informatics Research, University Health Network, Toronto, ON Canada.
Tran
T
Truong
D000068598:Data Accuracy; D003628:Database Management Systems; D016208:Databases, Factual; D057286:Electronic Health Records / Q000458:organization & administration*; D005568:Forms and Records Control / Q000379:methods; D008498:Medical Record Linkage / Q000379:methods*; D009323:Natural Language Processing; D018875:Vocabulary, Controlled