作者
Nicole G Weiskopf, George Hripcsak, Sushmita Swaminathan, Chunhua Weng
发表日期
2013/10/1
期刊
Journal of biomedical informatics
卷号
46
期号
5
页码范围
830-836
出版商
Academic Press
简介
We demonstrate the importance of explicit definitions of electronic health record (EHR) data completeness and how different conceptualizations of completeness may impact findings from EHR-derived datasets. This study has important repercussions for researchers and clinicians engaged in the secondary use of EHR data. We describe four prototypical definitions of EHR completeness: documentation, breadth, density, and predictive completeness. Each definition dictates a different approach to the measurement of completeness. These measures were applied to representative data from NewYork–Presbyterian Hospital’s clinical data warehouse. We found that according to any definition, the number of complete records in our clinical database is far lower than the nominal total. The proportion that meets criteria for completeness is heavily dependent on the definition of completeness used, and the different …
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NG Weiskopf, G Hripcsak, S Swaminathan, C Weng - Journal of biomedical informatics, 2013