Improving readability and comprehension levels of otolaryngology patient education materials using ChatGPT

Objective

A publicly available large language learning model platform may help determine current readability levels of otolaryngology patient education materials, as well as translate these materials to the recommended 6th-grade and 8th-grade reading levels.

Study design

Cross-sectional analysis.

Setting

Online using large language learning model, ChatGPT.

Methods

The Patient Education pages of the American Laryngological Association (ALA) and American Academy of Otolaryngology-Head and Neck Surgery (AAO-HNS) websites were accessed. Materials were input into ChatGPT (OpenAI, San Francisco, CA; version 3.5) and Microsoft Word (Microsoft, Redmond, WA; version 16.74). Programs calculated Flesch Reading Ease (FRE) scores, with higher scores indicating easier readability, and Flesch-Kincaid (FK) grade levels, estimating U.S. grade level required to understand text. ChatGPT was prompted to “translate to a 5th-grade reading level” and provide new scores. Scores were compared for statistical differences, as well as differences between ChatGPT and Word gradings.

Results

Patient education materials were reviewed and 37 ALA and 72 AAO-HNS topics were translated. Overall FRE scores and FK grades demonstrated significant improvements following translation of materials, as scored by ChatGPT (p < 0.001). Word also scored significant improvements in FRE and FK following translation by ChatGPT for AAO-HNS materials overall (p < 0.001) but not for individual topics or for subspecialty-specific categories. Compared with Word, ChatGPT significantly exaggerated the change in FRE grades and FK scores (p < 0.001).

Conclusion

Otolaryngology patient education materials were found to be written at higher reading levels than recommended. Artificial intelligence may prove to be a useful resource to simplify content to make it more accessible to patients.