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Average readability and understandability scores of Chat GPT and web search responses to generated patient questions.
| ChatGPT | Web search | Mean difference, 95% CI | |
|---|---|---|---|
| FRE | 42.3 ± 14.2 | 56.2 ± 17.4 | 13.9 (10.6 – 15.3) |
| FKRL | 12.1 ± 2.8 | 9.4 ±3.3 | −2.7 (−3.6 – −1.7) |
| PEMAT Understandability | 93.8 (57.1–100.0) | 88.4 (42.9 – 100.0) | −5.3 (−1.2 – 9.6) |
FRE: Flesch Reading Ease, FKGL: Flesch-Kincaid Grade Level
