Evaluation of readability of patient education materials on lateral epicondylitis (tennis elbow) from the top 25 orthopedic institutions

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Lateral epicondylitis (LE), also known as "tennis elbow," is a common orthopedic tendinosis of the elbow that affects between 1% and 3% of the overall population. LE occurs due to overuse of the extensor mechanism or muscles of supination in the forearm. The National Institute of Health and the Center for Disease Control suggest that patient education materials (PEMs) be written at a 6th or 8th grade reading level, respectively; however, PEMs are often written far beyond these recommended reading levels. The goal of this study was to assess the readability level of PEMs published by some of the top orthopedic institutions throughout the United States. A list of the top 25 ranking orthopedic hospitals in the country was compiled using the 2022 U.S. News and World Report Best Hospitals Specialty Ranking. PEMs related to LE were cataloged from each institution's website, and readability levels for each PEM were measured using the http://www.readabilityformulas.com website. This software analyzes readability using the formulas listed in Table1. While the Flesch-Kincaid (FK) Reading Ease Score formula outputs a number from 0 to 100, in which larger numbers indicate easier reading, the remaining formulas demonstrate a text's readability through assigning a grade-appropriate reading level. A Spearman regression was used to evaluate correlation between institutional ranking and FK Reading Ease Scores. Of the 25 PEM texts analyzed during this study, none were written at or below the sixth grade reading level, as recommended by the National Institutes of Health. These results suggest that the most prestigious orthopedic hospitals provide online informational resources that are unable to be read or understood by a large portion of the institution's intended audience. Additionally, there was no correlation found between institutional ranking and FK Reading Ease Score. Internet-based health information has conveniently allowed patients to educate themselves on their health care. In accordance with National Institutes of Health and Centers for Disease Control and Prevention guidelines, orthopedic institutions should strive to publish PEMs at or below an eighth grade reading level.