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Analyzing the Readability of Health Information Booklets on Cardiovascular Diseases
Richard Zowalla1, Monika Pobiruchin2, Martin Wiesner1
1Department Of Medical Informatics, Heilbronn University, Germany.
Insights
Patient health information booklets often require a high level of health literacy, impacting therapy adherence. This study automated readability analysis of cardiovascular booklets, finding they are written at a 9th-11th grade level.
Area of Science:
- Health Literacy
- Medical Communication
- Cardiovascular Health
Background:
- Low patient health literacy is linked to poorer health outcomes and reduced therapy adherence.
- Health information booklets are crucial tools for enhancing patient understanding and engagement.
- Effective communication in the cardiovascular domain is essential for patient management.
Purpose of the Study:
- To conduct a computer-based readability analysis of patient information booklets in the cardiovascular domain.
- To compare the effectiveness of five established readability assessment instruments.
- To evaluate the feasibility of automated text processing for analyzing patient-facing health materials.
Main Methods:
- Analysis of 34 English-language patient information booklets focused on heart disease, prevention, and procedures.
- Application of five distinct, well-validated readability assessment tools.
- Utilizing a computer-based tool-chain for automated text processing and analysis.
Main Results:
- Readability scores indicated that, on average, readers need a 9th-grade education (Flesch-Kincaid) to 11th-grade education (Gunning-Fog) to comprehend the booklets.
- The study confirmed the feasibility of an automated system for analyzing the readability of health information.
- Significant variation in readability levels was observed across the assessed booklets.
Conclusions:
- Patient information booklets in the cardiovascular field are often written at a reading level that may challenge a significant portion of the patient population.
- Readability metrics derived from different instruments should be interpreted with caution and not used interchangeably.
- Improving the readability of patient information is critical for enhancing health literacy and patient outcomes.
Abstract:
A low level of patient health literacy represents a major reason for worse prognosis or reduced therapy adherence. Health information booklets are a major tool for improving patient's health literacy. This paper presents a computer-based readability analysis of patient information booklets from the cardiovascular domain. The study relies on 34 English booklets mostly on heart disease, prevention and procedures. It compares five different, well-established readability instruments. On average, readers of the assessed booklets have to visit school at least until the 9th U.S. school grade when applying the Flesch-Kincaid formula. According to the Gunning-Fog metric, readers would have to attend school until the 11th grade. The presented study demonstrates the feasibility of a fully automated text processing tool-chain for patient information booklets. The results reveal that readability metrics should be carefully interpreted and only be interchanged with caution.
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