Combining structured and unstructured data in EMRs to create clinically-defined EMR-derived cohorts.

ABSTRACT:

Background

There have been few studies describing how production EMR systems can be systematically queried to identify clinically-defined populations and limited studies utilising free-text in this process. The aim of this study is to provide a generalisable methodology for constructing clinically-defined EMR-derived patient cohorts using structured and unstructured data in EMRs.

Methods

Patients with possible acute coronary syndrome (ACS) were used as an exemplar. Cardiologists defined clinical criteria for patients presenting with possible ACS. These were mapped to data tables within the production EMR system creating seven inclusion criteria comprised of structured data fields (orders and investigations, procedures, scanned electrocardiogram (ECG) images, and diagnostic c

SUBMITTER: Tam CS 

PROVIDER: S-EPMC7938556 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature