BPPV Information on Google Versus AI (ChatGPT)

Objective. To quantitatively compare online patient education materials found using traditional search engines (Google) versus conversational Artificial Intelligence (AI) models (ChatGPT) for benign paroxysmal positional vertigo (BPPV).Study Design. The top 30 Google search results for "benign paroxysmal positional vertigo" were compared to the OpenAI conversational AI language model, ChatGPT, responses for 5 common patient questions posed about BPPV in February 2023. Metrics included readability, quality, understandability, and actionability.Setting. Online information.Methods. Validated online information metrics including Flesch-Kincaid Grade Level (FKGL), Flesch Reading Ease (FRE), DISCERN instrument score, and Patient Education Materials Assessment Tool for Printed Materials were analyzed and scored by reviewers.Results. Mean readability scores, FKGL and FRE, for the Google webpages were 10.7 +/- 2.6 and 46.5 +/- 14.3, respectively. ChatGPT responses had a higher FKGL score of 13.9 +/- 2.5 (P < .001) and a lower FRE score of 34.9 +/- 11.2 (P = .005), both corresponding to lower readability. The Google webpages had a DISCERN part 2 score of 25.4 +/- 7.5 compared to the individual ChatGPT responses with a score of 17.5 +/- 3.9 (P = .001), and the combined ChatGPT responses with a score of 25.0 +/- 0.9 (P = .928). The average scores of the reviewers for all ChatGPT responses for accuracy were 4.19 +/- 0.82 and 4.31 +/- 0.67 for currency.Conclusion. The results of this study suggest that the information on ChatGPT is more difficult to read, of lower quality, and more difficult to comprehend compared to information on Google searches.