Journal
JOURNAL OF THE AMERICAN MEDICAL INFORMATICS ASSOCIATION
Volume 29, Issue 7, Pages 1279-1285Publisher
OXFORD UNIV PRESS
DOI: 10.1093/jamia/ocac041
Keywords
public health informatics; medical informatics; electronic health records; World Health Organization; COVID-19
Categories
Funding
- Centers for Disease Control and Prevention Grant [1U01CK000590]
- National Institutes of Health [K12 EY031372]
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This study presents a detailed blueprint for mapping electronic health record (EHR) data to the World Health Organization's Clinical Progression Scale (WHO-CPS). By developing guiding principles, the method was able to classify clinical severity for 100% of patient days across 2756 patient encounters in two medical centers.
Objective There is a need for a systematic method to implement the World Health Organization's Clinical Progression Scale (WHO-CPS), an ordinal clinical severity score for coronavirus disease 2019 patients, to electronic health record (EHR) data. We discuss our process of developing guiding principles mapping EHR data to WHO-CPS scores across multiple institutions. Materials and Methods Using WHO-CPS as a guideline, we developed the technical blueprint to map EHR data to ordinal clinical severity scores. We applied our approach to data from 2 medical centers. Results Our method was able to classify clinical severity for 100% of patient days for 2756 patient encounters across 2 institutions. Discussion Implementing new clinical scales can be challenging; strong understanding of health system data architecture was integral to meet the clinical intentions of the WHO-CPS. Conclusion We describe a detailed blueprint for how to apply the WHO-CPS scale to patient data from the EHR.
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