Developing a COVID-19 WHO Clinical Progression Scale inpatient database from electronic health record data

J Am Med Inform Assoc. 2022 Jun 14;29(7):1279-1285. doi: 10.1093/jamia/ocac041.

Abstract

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.

Keywords: COVID-19; World Health Organization; electronic health records; medical informatics; public health informatics.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • COVID-19*
  • Databases, Factual
  • Electronic Health Records*
  • Humans
  • Inpatients
  • World Health Organization