Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department

Objective: While the American Diabetes Association (ADA) screening guidelines have been used widely, the way they are implemented and adapted to a particular setting can impact their practical application and usage. Our primary objective was to validate a best practice advisory (BPA) screening algor...

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Main Authors: Mary H. Smart, Janet Y. Lin, Brian T. Layden, Yuval Eisenberg, Kirstie K. Danielson, Ruth Pobee, Chuxian Tang, Brett Rydzon, Anjana Bairavi Maheswaran, A. Simon Pickard, Lisa K. Sharp, Angela Kong
Format: Article
Language:English
Published: eScholarship Publishing, University of California 2025-02-01
Series:Western Journal of Emergency Medicine
Online Access:https://escholarship.org/uc/item/3g00374m
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author Mary H. Smart
Janet Y. Lin
Brian T. Layden
Yuval Eisenberg
Kirstie K. Danielson
Ruth Pobee
Chuxian Tang
Brett Rydzon
Anjana Bairavi Maheswaran
A. Simon Pickard
Lisa K. Sharp
Angela Kong
author_facet Mary H. Smart
Janet Y. Lin
Brian T. Layden
Yuval Eisenberg
Kirstie K. Danielson
Ruth Pobee
Chuxian Tang
Brett Rydzon
Anjana Bairavi Maheswaran
A. Simon Pickard
Lisa K. Sharp
Angela Kong
author_sort Mary H. Smart
collection DOAJ
description Objective: While the American Diabetes Association (ADA) screening guidelines have been used widely, the way they are implemented and adapted to a particular setting can impact their practical application and usage. Our primary objective was to validate a best practice advisory (BPA) screening algorithm informed by the ADA guidelines to identify patients eligible for hemoglobin a1c (HbA1c) testing in the emergency department (ED). Methods: This cross-sectional study included adults presenting to a large urban medical center’s ED in May 2021. We used sensitivity, specificity, likelihood ratios, and predictive values to estimate the algorithm’s ability to correctly identify patients eligible for diabetes screening, with manual chart review as the reference standard. Eligibility criteria targeted patients at risk for diabetes who were likely unaware of their elevated HbA1c. We also calculated the area under the receiver operating characteristic curve (AUC). Results: In May 2021, 2,963 (77%) of the 3,850 adults admitted to the ED had a routine lab ordered. Among those, 796 (27%) had a BPA triggered, and of those 631 (79%) had an HbA1c test completed. The algorithm had acceptable sensitivity (0.69, 95% confidence interval [CI] 0.66–0.72), specificity (0.91, CI 0.89–0.92), positive predictive value (0.75, CI 0.72–0.78) and negative predictive value (0.88, CI 0.86–0.89). The positive likelihood ratio (7.39, CI 6.35–8.42) was adequate, and the negative likelihood ratio (0.34, CI 0.30–0.37) was informative. The AUC of 0.74 (CI 0.72–0.77) suggests that the algorithm had acceptable accuracy. Conclusion: Findings suggest that an electronic health record-based algorithm informed by the ADA guidelines is a valid tool for identifying patients presenting to the ED who are eligible for HbA1c testing and may be unaware of having prediabetes or diabetes. The ease of workflow integration and high yield of potentially undiagnosed diabetes and prediabetes makes the BPA algorithm an appealing method for diabetes screening within the ED.
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spelling doaj-art-9f1be65675e84be694d2c5841ac792d52025-08-20T03:31:51ZengeScholarship Publishing, University of CaliforniaWestern Journal of Emergency Medicine1936-900X1936-90182025-02-0126372072810.5811/westjem.20548wjem-26-720Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency DepartmentMary H. Smart0Janet Y. Lin1Brian T. Layden2Yuval Eisenberg3Kirstie K. Danielson4Ruth Pobee5Chuxian Tang6Brett Rydzon7Anjana Bairavi Maheswaran8A. Simon Pickard9Lisa K. Sharp10Angela Kong11University of Illinois Chicago, College of Pharmacy, Department of Pharmacy Systems, Outcomes and Policy, Chicago, IllinoisUniversity of Illinois Chicago, College of Medicine, Department of Emergency Medicine, Chicago, IllinoisUniversity of Illinois Chicago, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Chicago, IllinoisUniversity of Illinois Chicago, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Chicago, IllinoisUniversity of Illinois Chicago, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Chicago, IllinoisUniversity of Illinois Chicago, College of Medicine, Department of Emergency Medicine, Chicago, IllinoisUniversity of Illinois Chicago, College of Medicine, Department of Emergency Medicine, Chicago, IllinoisUniversity of Illinois Chicago, Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, Chicago, IllinoisUniversity of Illinois Chicago, College of Medicine, Department of Emergency Medicine, Chicago, IllinoisUniversity of Illinois Chicago, College of Pharmacy, Department of Pharmacy Systems, Outcomes and Policy, Chicago, IllinoisUniversity of Illinois Chicago, College of Nursing, Department of Biobehavioral Nursing Science, Chicago, IllinoisUniversity of Illinois Chicago, College of Pharmacy, Department of Pharmacy Systems, Outcomes and Policy, Chicago, IllinoisObjective: While the American Diabetes Association (ADA) screening guidelines have been used widely, the way they are implemented and adapted to a particular setting can impact their practical application and usage. Our primary objective was to validate a best practice advisory (BPA) screening algorithm informed by the ADA guidelines to identify patients eligible for hemoglobin a1c (HbA1c) testing in the emergency department (ED). Methods: This cross-sectional study included adults presenting to a large urban medical center’s ED in May 2021. We used sensitivity, specificity, likelihood ratios, and predictive values to estimate the algorithm’s ability to correctly identify patients eligible for diabetes screening, with manual chart review as the reference standard. Eligibility criteria targeted patients at risk for diabetes who were likely unaware of their elevated HbA1c. We also calculated the area under the receiver operating characteristic curve (AUC). Results: In May 2021, 2,963 (77%) of the 3,850 adults admitted to the ED had a routine lab ordered. Among those, 796 (27%) had a BPA triggered, and of those 631 (79%) had an HbA1c test completed. The algorithm had acceptable sensitivity (0.69, 95% confidence interval [CI] 0.66–0.72), specificity (0.91, CI 0.89–0.92), positive predictive value (0.75, CI 0.72–0.78) and negative predictive value (0.88, CI 0.86–0.89). The positive likelihood ratio (7.39, CI 6.35–8.42) was adequate, and the negative likelihood ratio (0.34, CI 0.30–0.37) was informative. The AUC of 0.74 (CI 0.72–0.77) suggests that the algorithm had acceptable accuracy. Conclusion: Findings suggest that an electronic health record-based algorithm informed by the ADA guidelines is a valid tool for identifying patients presenting to the ED who are eligible for HbA1c testing and may be unaware of having prediabetes or diabetes. The ease of workflow integration and high yield of potentially undiagnosed diabetes and prediabetes makes the BPA algorithm an appealing method for diabetes screening within the ED.https://escholarship.org/uc/item/3g00374m
spellingShingle Mary H. Smart
Janet Y. Lin
Brian T. Layden
Yuval Eisenberg
Kirstie K. Danielson
Ruth Pobee
Chuxian Tang
Brett Rydzon
Anjana Bairavi Maheswaran
A. Simon Pickard
Lisa K. Sharp
Angela Kong
Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
Western Journal of Emergency Medicine
title Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
title_full Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
title_fullStr Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
title_full_unstemmed Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
title_short Validating an Electronic Health Record Algorithm for Diabetes Screening Eligibility in the Emergency Department
title_sort validating an electronic health record algorithm for diabetes screening eligibility in the emergency department
url https://escholarship.org/uc/item/3g00374m
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