Cited by 412Artificial Intelligence in Healthcare and EducationArtificial Intelligence in HealthcareClinical Reasoning and Diagnostic Skills

Assessing the Utility of ChatGPT Throughout the Entire Clinical Workflow: Development and Usability Study

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Rao, Arya, Pang, Michael, Kim, John, Kamineni, Meghana, Lie, Winston, Prasad, Anoop K, Landman, Adam, Dreyer, Keith +1 more·2023·Journal of Medical Internet Research

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Abstract

Background: Large language model (LLM)–based artificial intelligence chatbots direct the power of large training data sets toward successive, related tasks as opposed to single-ask tasks, for which artificial intelligence already achieves impressive performance. The capacity of LLMs to assist in the full scope of iterative clinical reasoning via successive prompting, in effect acting as artificial physicians, has not yet been evaluated. Objective: This study aimed to evaluate ChatGPT’s capacity for ongoing clinical decision support via its performance on standardized clinical vignettes. Methods: We inputted all 36 published clinical vignettes from the Merck Sharpe & Dohme (MSD) Clinical Manual into ChatGPT and compared its accuracy on differential diagnoses, diagnostic testing, final diagnosis, and management based on patient age, gender, and case acuity. Accuracy was measured by the proportion of correct responses to the questions posed within the clinical vignettes tested, as calculated by human scorers. We further conducted linear regression to assess the contributing factors toward ChatGPT’s performance on clinical tasks. Results: ChatGPT achieved an overall accuracy of 71.7% (95% CI 69.3%-74.1%) across all 36 clinical vignettes. The LLM demonstrated the highest performance in making a final diagnosis with an accuracy of 76.9% (95% CI 67.8%-86.1%) and the lowest performance in generating an initial differential diagnosis with an accuracy of 60.3% (95% CI 54.2%-66.6%). Compared to answering questions about general medical knowledge, ChatGPT demonstrated inferior performance on differential diagnosis (β=–15.8%; P<.001) and clinical management (β=–7.4%; P=.02) question types. Conclusions: ChatGPT achieves impressive accuracy in clinical decision-making, with increasing strength as it gains more clinical information at its disposal. In particular, ChatGPT demonstrates the greatest accuracy in tasks of final diagnosis as compared to initial diagnosis. Limitations include possible model hallucinations and the unclear composition of ChatGPT’s training data set.

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  • ChatGPT can achieve high accuracy in classifying basic parameters such as pH and oxygenation status.

    “Studies have demonstrated that ChatGPT can achieve high accuracy in classifying basic parameters such as pH and oxygenation status8.”

    From Structural error asymmetry and harm-weighted analysis of ChatGPT versus ICU Physicians in acid–base interpretation: a prospective observational study (2026) · cites this paper as [8]

    The Results (Overall Performance; page unavailable) report 71.8% accuracy across clinical vignettes, supporting a general claim about ChatGPT’s clinical-task accuracy. The paper does not report accuracy for classifying pH or oxygenation status specifically (searched: “pH,” “oxygenation,” and their combination). (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • The only analysis that tested an LLM throughout the diagnostic clinical workflow used curated lists of possible answers and examined only 36 hypothetical clinical vignettes.

    “the only analysis that tested an LLM throughout the diagnostic clinical workflow used curated lists of possible answers and examined only 36 hypothetical clinical vignettes28.”

    From Evaluation and mitigation of the limitations of large language models in clinical decision-making (2024) · cites this paper as [28]

    The Methods (Study Design; Data Sources and Measurement, page not provided) describe testing ChatGPT across successive stages of the clinical workflow using all 36 MSD Manual vignettes. The vignette questions included select-all-that-apply choices, supporting the description of answer lists. The Introduction calls this study the first to use earlier conversational context in downstream responses, but does not establish that it was the only analysis testing an LLM throughout the workflow. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • Hallucinations put the whole AI chatbot data output under significant question, especially in implementing and applying AI aid into clinical practice.

    “As such, hallucinations put the whole AI chatbot data output under significant question, especially in implementing and applying AI aid into clinical practice [44,45].”

    From Reference Hallucination Score for Medical Artificial Intelligence Chatbots: Development and Usability Study (2024) · cites this paper as [44]

    The Discussion (page unavailable) identifies hallucinations as a limitation of ChatGPT and says even small clinical errors can cause harm, so these risks must inform its clinical use and regulation. It does not say hallucinations call all AI chatbot output into question; the paper also reports substantial accuracy for ChatGPT on the clinical vignettes it tested. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Well-founded feedback after completing a task is essential for an effective learning process.

    “Well-founded feedback after completing a task is essential for an effective learning process [ 13 ].”

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Research works printed but not linked: 1

  1. [25]Institute of Medicine (US) Committee on Understanding and Eliminating Racial and Ethnic Disparities in Health Care Smedley BD Stith AY Nelson AR Unequal Treatment: Confronting Racial and Ethnic Disparities in Health Care 2003 Washington, DC National Academies Press (US) 25032386

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Authors
Rao, A., Pang, M., Kim, J., Kamineni, M., Lie, W., Prasad, A. K., Landman, A., Dreyer, K., & Succi, M. D.
Affiliations
  • Harvard University (US)
  • Brigham and Women's Hospital (US)
Corresponding author
Succi, Marc D
Venue
Journal of Medical Internet Research
Published
2023-08-22
Volume
25
Pages
e48659
ISSN
1438-8871 (ISSN-L)
OpenAlex
W4386045865
Cited by
412
References
26
Citations by year
2026: 95 · 2025: 131 · 2024: 139 · 2023: 45 · 2022: 1
FWCI
16.37
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Medical Internet Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health
  • National Institute of General Medical Sciences (T32GM144273)
Topics
  • Health Sciences › Medicine › Health Informatics › Artificial Intelligence in Healthcare and Education
  • Health Sciences › Health Professions › Health Information Management › Artificial Intelligence in Healthcare
  • Health Sciences › Medicine › Family Practice › Clinical Reasoning and Diagnostic Skills
Keywords
ChatGPT, large language models, clinical decision support, AI chatbots, differential diagnosis, clinical vignettes, diagnostic accuracy, clinical management, model hallucination, clinical reasoning
MeSH terms
Clinical Decision-Making, User-Centered Design, Artificial Intelligence, Humans, Organizations, Workflow

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