Doctor Versus Artificial Intelligence: Patient and Physician Evaluation of Large Language Model Responses to Rheumatology Patient Questions in a Cross‐Sectional Study

Arthritis RheumatolPublished Cross-sectional study

Authors' conclusion

Rheumatology patients rated AI-generated responses to patient questions similarly to physician-generated responses in terms of comprehensiveness, readability, and overall preference. However, rheumatologists rated AI responses significantly poorer than physician-generated responses, suggesting that LLM chatbot responses are inferior to physician responses, a difference that patients may not be aware of.

Study context

Population
Rheumatology patients, Edmonton, Alberta, Canada; responses also rated by four rheumatologistsplus 4 rheumatologists
Participants
17 patients
Exposure
Large language model (LLM) chatbot (artificial intelligence (AI)) vs physician-generated responses to patient-generated rheumatology questions
Outcome
Quality of responses: comprehensiveness and readability (patients), plus accuracy (rheumatologists), Likert scale 1–10 (1 poor, 10 excellent)
Methodological detailssingle-centre, survey
  • Single-centre
  • Survey

Main finding

As reported in the abstract

Patient-rated comprehensiveness (Likert 1–10)

AI

7.12

mean · SD 0.99

Physician

7.52

SD 1.16

P = 0.1962

Observational data: associations, not effects.

Further findings

OutcomeAIPhysicianP value
Patient-rated readability (Likert 1–10)No significant difference7.90 (SD 0.90)7.80 (SD 0.75)P = 0.5905
Rheumatologist-rated comprehensiveness (Likert 1–10)AI significantly poorer5.52 (SD 2.13)8.76 (SD 1.07)P < 0.0001
Rheumatologist-rated readability (Likert 1–10)AI significantly poorer7.85 (SD 0.92)8.75 (SD 0.57)P = 0.0003
Rheumatologist-rated accuracy (Likert 1–10)AI significantly poorer6.48 (SD 2.07)9.08 (SD 0.64)P < 0.0001
Proportion of preference for AI vs physician responses, by raterP = 0.0106
Proportion correctly identifying AI-generated answers, by rater · after learning one answer per question was AI generatedPatients vs Rheumatologists · patients lowerP = 0.0183
Average word count of answersaverage 69.10 (SD 25.35) words98.83 (SD 34.58) wordsP = 0.0008
  • Proportion of preference for AI vs physician responses, by rater: Patients 0.45 (SD 0.18)
  • Proportion of preference for AI vs physician responses, by rater: Rheumatologists 0.15 (SD 0.08)
  • Proportion correctly identifying AI-generated answers, by rater: Patients 0.49 (SD 0.26)
  • Proportion correctly identifying AI-generated answers, by rater: Rheumatologists 0.97 (SD 0.04)

Original publication

Doctor Versus Artificial Intelligence: Patient and Physician Evaluation of Large Language Model Responses to Rheumatology Patient Questions in a Cross‐Sectional Study. Arthritis Rheumatol. Published 18 January 2024. doi:10.1002/art.42737

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