Cited by 172Electronic Health Records SystemsHealthcare Technology and Patient MonitoringPatient Safety and Medication Errors

The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index; none of the 12 sources its claims cite is checked for support yet.

Drug interaction alert override rates in the Meaningful Use era: No evidence of progress

Open access
Bryant, A.D., Fletcher, G.S., Payne, T.H.·2014·Applied Clinical Informatics

Abstract

Summary: Background: Interruptive drug interaction alerts may reduce adverse drug events and are required for Stage I Meaningful Use attestation. For the last decade override rates have been very high. Despite their widespread use in commercial EHR systems, previously described interventions to improve alert frequency and acceptance have not been well studied. Objectives: (1) To measure override rates of inpatient medication alerts within a commercial clinical decision support system, and assess the impact of local customization efforts. (2) To compare override rates between drug-drug interaction and drug-allergy interaction alerts, between attending and resident physicians, and between public and academic hospitals. (3) To measure the correlation between physicians’ individual alert quantities and override rates as an indicator of potential alert fatigue. Methods: We retrospectively analyzed physician responses to drug-drug and drug-allergy interaction alerts, as generated by a common decision support product in a large teaching hospital system. Results: (1) Over four days, 461 different physicians entered 18,354 medication orders, resulting in 2,455 visible alerts; 2,280 alerts (93%) were overridden. (2) The drug-drug alert override rate was 95.1%, statistically higher than the rate for drug-allergy alerts (90.9%) (p < 0.001). There was no significant difference in override rates between attendings and residents, or between hospitals. (3) Physicians saw a mean of 1.3 alerts per day, and the number of alerts per physician was not significantly correlated with override rate (R2 = 0.03, p = 0.41). Conclusions: Despite intensive efforts to improve a commercial drug interaction alert system and to reduce alerting, override rates remain as high as reported over a decade ago. Alert fatigue does not seem to contribute. The results suggest the need to fundamentally question the premises of drug interaction alert systems. Citation: Bryant AD, Fletcher GS, Payne TH. Drug interaction alert override rates in the Meaningful Use era: No evidence of progress. Appl Clin Inf 2014; 5: 802–813 http://dx.doi.org/10.4338/ACI-2013-12-RA-0103

Overview

AI snapshot

Written from the paper’s full text.

TL;DR

In a 96-hour retrospective audit at two UW Medicine teaching hospitals using a commercial Cerner/Multum CDS, 93% of 2,455 physician-visible drug interaction alerts were overridden, with drug-drug alerts overridden more often than drug-allergy alerts (95.1% vs 90.9%). Despite local reclassification efforts, override rates remained as high as historical reports, and alert quantity was not correlated with override rate.

Key findings

  • Over four days, 461 physicians entered 18,354 medication orders, generating 2,455 visible alerts; 2,280 alerts (93%) were overridden.
  • Drug-drug alert override rate was 95.1%, significantly higher than drug-allergy alerts at 90.9% (p < 0.001); there was no significant difference between attendings and residents (p = 0.11) or between hospitals (p = 0.25).
  • Physicians saw a mean of 1.3 alerts per day; individual alert quantity was not significantly correlated with override rate (R² = 0.03, p = 0.41).
  • Exact allergy matches were 123/1,302 (9%) of allergy alerts, and 94/123 (76%) of these exact-match alerts were overridden; antibiotic allergy alerts had the highest compliance among drug-allergy classes (121/172, 70% overridden).

Methods

  • Retrospective review of major medication alerts at UW Medical Center and Harborview Medical Center from Monday, June 10, 2013 00:00 to Thursday, June 13, 2013 23:59 (96 hours), using Cerner Millennium with the Multum knowledge base; only major interactions generated interruptive physician alerts.
  • Alerts were included if they occurred in the study period, were handled by a physician, and occurred on an inpatient; there were no exclusion criteria. Records were filtered to MD, DO, DDS, or MBBS credentials, and coincident alerts in the same window were counted as a single override in the main analysis.
  • Override rates across categories were compared with Pearson’s chi-squared tests; alert quantity and override rate were correlated with simple linear regression and a 2-tailed F test; significance was α = 0.05; analysis used Microsoft Excel.

Limitations

  • Stated: the study examined only medication alert override rates and associated metadata, over a short time span, within a single vendor’s CDS; it did not assess alert or override appropriateness, review adverse events, or examine behavior outside the alert window, and could not determine whether alert fatigue or other factors increased inappropriate overrides. The authors also note that some physicians may override alerts but later cancel orders, leading to falsely high estimates of noncompliance, and that high baseline override rates may have masked differences due to alert fatigue or other variability.
  • Evident from the text: the findings come from one health system’s two hospitals over four days, are limited to physicians, and do not include patient outcomes or independent appropriateness review; override reasons were coded and most physicians selected the first option, which may limit interpretation of override intent.

Model-written summary. Check it against the paper before relying on it.

Integrity signals

Registry

Crossref · 10.4338/aci-2013-12-ra-0103

Cites

28 of 28 references verified0 citation errors · 0 not checkable

Statistics

Nothing to recompute.

Verification

Claims the paper makes

26 Own result · 9 Not checked yet · 9 Own interpretation · 6 Own method · 3 No basis given

Verify all 12 references — free account

Show all 33 claims

  • It may state two separate claims as one. 11
  • Probably not a substantial claim. 10
20 of 20
  • The paper relies on this without support.

    Override rates are a valid measure of clinical decision support acceptance and utility.

    “We are the first to report a lack of improvement in decision support acceptance (as measured by overrides) after Meaningful Use requirements took effect.”
  • The paper relies on this without support.

    The four-day audit period is representative of typical inpatient medication ordering and alerting at the study hospitals.

    “This continuous 96 hour order entry period provided adequate data and excluded dates of resident and faculty turnover.”
  • The paper relies on this without support.

    The study's commercial CDS system is similar to those used in many U.S. hospitals.

    “We demonstrated this lack of improvement within a popular commercial decision support system, similar to those used in many hospitals nationwide.”
  • The paper relies on this without support.

    The local customization efforts represent a strong effort to improve CDS acceptance.

    “University of Washington made a strong effort to improve CDS and its acceptance based on suggestions in the literature using local expertise to modify the default alerts within the constraints of our commercial system.”
  • The paper relies on this without support.

    Historical override rates reported in prior studies are comparable to the current study's rates.

    “Our current rates are at or above the rates in previous studies, including those at our regional VA hospital [7,8].”
  • The authors state this as an assumption.

    If alert fatigue contributes to overrides, physicians with higher alert quantities will have higher override rates.

    “Further, we hypothesized that physicians who saw higher quantities of alerts would have higher override rates, as predicted by the theory of alert fatigue.”
  • The paper relies on this without support.

    The coded override reason selected by a physician accurately reflects the physician's reason for overriding the alert.

    “Most overriding physicians entered the reason”
7 of 7

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Citations

Cites

Show all 28 references

Research works printed but not linked: 1

  1. Langemeijer, 2011, Stud Health Technol Inform, 169, 930

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Metadata

Authors
Bryant, A. D., Fletcher, G. S., & Payne, T. H.
Affiliations
University of Washington (US)
Corresponding author
Payne, T.H.
Venue
Applied Clinical Informatics
Published
2014
Volume
05
Issue
03
Pages
802-813
ISSN
1869-0327 (ISSN-L)
OpenAlex
W1155385988
Cited by
172
References
28
Citations by year
2026: 6 · 2025: 9 · 2024: 5 · 2023: 14 · 2022: 21 · 2021: 13 · 2020: 20 · 2019: 25 · 2018: 14 · 2017: 18 · 2016: 15 · 2015: 12
FWCI
27.37
Type
journal article
Language
en
Open access
Locations
  • Applied Clinical Informatics (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Health Professions › Health Information Management › Electronic Health Records Systems
  • Health Sciences › Medicine › Surgery › Healthcare Technology and Patient Monitoring
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Patient Safety and Medication Errors
Keywords
drug interaction alerts, clinical decision support, alarm fatigue, meaningful use, drug-drug interactions, drug allergy alerts, hospital comparison
MeSH terms
Humans, Medication Errors, Washington, Incidence, Prevalence, Clinical Pharmacy Information Systems, Adverse Drug Reaction Reporting Systems, Evidence-Based Medicine, Electronic Prescribing, Pharmacovigilance, Meaningful Use, Drug-Related Side Effects and Adverse Reactions

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