The effectiveness of large language models in medical AI research for physicians: A randomized controlled trial

Abstract

Physicians offer invaluable clinical insights, but their involvement in medical AI research is hindered by limited technical expertise. We conduct a superiority, open-label, randomized controlled trial involving 64 junior ophthalmologists to undertake a 2-week project on "automated cataract identification" under minimal engineering assistance, with (intervention, n = 32) or without (control, n = 32) ChatGPT-3.5. The overall project completion rate is higher in intervention group than controls (87.5% vs. 25.0%; difference 62.5%, p = 9.42e-7), and the unassisted completion rate likewise (68.7% vs. 3.1%; difference 65.6%, p = 5.70e-8). The intervention group demonstrates better project planning and faster completion times (p < 0.01). After a 2-week washout, 41.2% of successful intervention participants complete a new project without the support of large language models (LLMs). A survey shows that 42.6% of participants fear regurgitating information without understanding and 40.4% worry about fostering lazy thinking, indicating potential dependency. Therefore, LLMs can help physicians overcome technical barriers, although long-term risks require further study. Trial registration: This study was registered at ClinicalTrials.gov (NCT06015178).

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