Assessing the Readability and Comprehensibility of Online Patient Educational Materials for Common Disorders

Background In our age of technology, millions of people use the Internet daily for health-related searches and guidance, both patients and caregivers alike. However, health literacy remains notably low among U.S. adults, and this issue is particularly critical for individuals with severe mental illnesses. Poor health literacy is often linked to low socioeconomic status and correlates with adverse patient outcomes and limited healthcare access. With the average reading level of the U.S. adult at the eighth-grade level, guidelines recommend health information be written to match. This study focuses on the readability of top Google search results for common psychotic disorders, emphasizing the need for accessible online health information to support vulnerable populations with severe mental illnesses. Methods The top five most visited websites for eight psychiatric conditions were included in this study. These conditions included schizophrenia, schizoaffective disorder, schizophreniform disorder, delusional disorder, bipolar 1 disorder, major depressive disorder (MDD) with psychotic features, substance-induced psychotic disorder, and psychotic disorder due to a general medical condition. The Flesch-Kincaid (FK) reading ease and grade level score were calculated for each webpage. Additionally, all institutions and organizations that created each webpage were noted. Results The average FK grade level was 9.9 (corresponding to a 10th-grade level), while the overall FK reading ease was 37.3 (corresponding to college-level difficulty) across all disorders analyzed. Websites on MDD with psychotic features had the lowest average FK grade level, 8.6, and best reading ease score. Websites discussing delusional disorder had the highest average FK grade level, 11.2, while those with information on schizophreniform disorder had the lowest average reading ease with a score of 31.7, corresponding to "difficult (college)" level reading. Conclusion Both patient education and compliance can be improved with more accessible and readable patient educational materials. Our study shows significant opportunities for improvement in the readability and comprehensibility of online educational materials for eight of the most common psychotic disorders. Physicians and other healthcare providers should be aware of this barrier, recommending specific websites, literature, and resources for patients and their caregivers. Further efforts should be aimed at creating new and easy-to-comprehend online material for mental health disorders, ensuring the best quality and care for these patients.