Prevalence and Causes of Diagnostic Errors in Hospitalized Patients Under Investigation for COVID-19
Prevalence and Causes of Diagnostic Errors in Hospitalized
Patients Under Investigation for COVID‑19
Andrew D. Auerbach, MD, MPH1 , Gopi J. Astik, MD2, Kevin J. O’Leary, MD2,
Peter N. Barish, MD1, Molly A. Kantor, MD1, Katie R. Raffel, MD3, Sumant R. Ranji, MD4,
Stephanie K. Mueller5, Sharran N. Burney, MSN, RN, NP6, Janice Galinsky, MSN, RN, NP6,
Esteban F. Gershanik, MD5, Abhishek Goyal, MD5, Pooja R. Chitneni, MD5, Sarah Rastegar, MD6,
Armond M. Esmaili, MD1, Cynthia Fenton, MD1, Anunta Virapongse, MD3, Li‑Kheng Ngov, MD3,
Marisha Burden, MD3, Angela Keniston, PhD3, Hemali Patel, MD3, Ashwin B. Gupta, MD7,8,
Jeff Rohde, MD7, Ruby Marr, MD7, S. Ryan Greysen, MD, MHS9, Michele Fang, MD9,
Pranav Shah, MD9, Frances Mao, MD9, Farah Kaiksow, MD10, David Sterken, MD10,
Justin J. Choi, MD11, Jigar Contractor, MD11, Abhishek Karwa, MD4, David Chia, MD4,
Tiffany Lee, BA1, Colin C. Hubbard, PhD1, Judith Maselli, MPH1, Anuj K. Dalal, MD5, and
Jeffrey L. Schnipper, MD, MPH5
1
Division of Hospital Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, USA; 2Division of Hospital
Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA; 3Division of Hospital Medicine, Department of Medicine,
University of Colorado Anschutz Medical Campus, Aurora, CO, USA; 4Division of Hospital Medicine, Zuckerberg San Francisco General
Hospital, San Francisco, CA, USA; 5Hospital Medicine Unit, Division of General Internal Medicine and Primary Care, Brigham and Women’s
Hospital, and Harvard Medical School, Boston, MA, USA; 6Brigham and Women’s Faulkner Hospital, Boston, MA, USA; 7Division of Hospital
Medicine, University of Michigan Medical School, Ann Arbor, MI, USA; 8Division of Hospital Medicine, VA Ann Arbor Healthcare System,
Ann Arbor, MI, USA; 9Section of Hospital Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA;
10
Division of Hospital Medicine, University of Wisconsin School of Medicine and Public Health, WI, Madison, USA; 11Department of Medicine,
Weill Cornell Medical College, New York, NY, USA
ABSTRACT
BACKGROUND: The COVID-19 pandemic required clinicians to care for a disease with evolving characteristics
while also adhering to care changes (e.g., physical distancing practices) that might lead to diagnostic errors (DEs).
OBJECTIVE: To determine the frequency of DEs and
their causes among patients hospitalized under investigation (PUI) for COVID-19.
DESIGN: Retrospective cohort.
SETTING: Eight medical centers affiliated with the Hospital Medicine ReEngineering Network (HOMERuN).
TARGET POPULATION: Adults hospitalized under
investigation (PUI) for COVID-19 infection between February and July 2020.
MEASUREMENTS: We randomly selected up to 8 cases
per site per month for review, with each case reviewed by
two clinicians to determine whether a DE (defined as a
missed or delayed diagnosis) occurred, and whether any
diagnostic process faults took place. We used bivariable
statistics to compare patients with and without DE and
multivariable models to determine which process faults
or patient factors were associated with DEs.
RESULTS: Two hundred and fifty-seven patient charts
underwent review, of which 36 (14%) had a diagnostic
error. Patients with and without DE were statistically
similar in terms of socioeconomic factors, comorbidities,
risk factors for COVID-19, and COVID-19 test turnaround
time and eventual positivity. Most common diagnostic
Received December 4, 2022
Accepted March 13, 2023
process faults contributing to DE were problems with
clinical assessment, testing choices, history taking, and
physical examination (all p < 0.01). Diagnostic process
faults associated with policies and procedures related to
COVID-19 were not associated with DE risk. Fourteen
patients (35.9% of patients with errors and 5.4% overall)
suffered harm or death due to diagnostic error.
LIMITATIONS: Results are limited by available documentation and do not capture communication between
providers and patients.
CONCLUSION: Among PUI patients, DEs were common
and not associated with pandemic-related care changes,
suggesting the importance of more general diagnostic
process gaps in error propagation.
J Gen Intern Med
DOI: 10.1007/s11606-023-08176-6
© The Author(s) 2023
INTRODUCTION
Diagnostic errors (DEs) are “the failure to (a) establish
an accurate and timely explanation of the patient’s health
problem(s) or (b) communicate that explanation to the
patient.”1 Many factors contribute to diagnostic errors, but
key among them are complex and fragmented care systems,
the limited time available to providers trying to ascertain
a firm diagnosis, and the work systems and cultures that
impede improvements in diagnostic performance.2–8 In the
hospital setting, work burden, patient acuity, and technology
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Auerbach et al: Prevalence and Causes of Diagnostic Errors in Patients
(such as electronic health records [EHRs] and multiple “alerting” systems9) all contribute.
In the early stages of the COVID-19 pandemic, these preexisting problems were exacerbated in ways that have yet to
be fully elucidated.10 Shortages of personal protective equipment (PPE) and concerns about workforce preservation led
hospitals to replace physical visits with videoconferencing or
telephone-based encounters.11–17 Hospital visitor restrictions
impaired or delayed collaborative discussions with patients’
family members, potentially limiting clinicians’ ability
to obtain thorough clinical histories. Changes in coverage
models (e.g., internal medicine providers providing critical care services18) changed the clinical expertise of physicians caring for COVID-19 patients. Data from our network
suggested that half of hospitalist leaders surveyed related a
missed or delayed non-COVID-19 diagnosis among patients
under investigation (PUI) for COVID-19 infection. A similar
proportion also reported missing COVID-19 as a diagnosis
in patients admitted for other medical reasons,13 consistent
with conceptual models published early in the pandemic.10
This study, undertaken at the height of the first wave of
the COVID-19 pandemic, sought to gain an understanding
of the prevalence of diagnostic errors among PUIs or with
confirmed COVID-19 infection and to gather insights into
whether changes in health care policies and procedures during the pandemic might have contributed to these errors.
METHODS
Study Design This was a retrospective multicenter cohort
study of randomly selected patients admitted under investigation for COVID-19 investigation.
Sites and Subjects This study was undertaken as a collaboration
among eight academic centers participating in the Hospital Medicine ReEngineering N
etwork19 who were already conducting
diagnostic error case reviews as part of a larger research study.20
Sites in this study represented a range of settings, including locations such as New York City which were affected more significantly by the pandemic (...truncated)