Reading level and suitability of congestive heart failure (CHF) education in a mobile app (chf info app): Descriptive design study

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Abstract

Background: Education at the time of diagnosis or at discharge after an index illness is a vital component of improving outcomes in congestive heart failure (CHF). About 90 million Americans have limited health literacy and have a readability level at or below a 5th-grade level, which could affect their understanding of education provided at the time of diagnosis or discharge from hospital. Objective: The aim of this paper was to assess the suitability and readability level of a mobile phone app, the CHF Info App. Methods: A descriptive design was used to assess the reading level and suitability of patient educational materials included in the CHF Info App. The suitability assessment of patient educational materials included in the CHF Info App was independently assessed by two of the authors using the 26-item Suitability Assessment of Materials (SAM) tool. The reading grade level for each of the 10 CHF educational modules included in the CHF Info App was assessed using the comprehensive online Text Readability Consensus Calculator based on the seven most-common readability formulas: the Flesch Reading Ease Formula, the Gunning Fog Index, the Flesch-Kincaid Grade Level Formula, the Coleman-Liau Index, the Simplified Measure of Gobbledygook Index, the Automated Readability Index, and the Linsear Write Formula. The reading level included the text-scale score, the ease-of-reading score, and the corresponding grade level. Results: The educational materials included in the CHF Info App ranged from a 5th-grade to an 8th-grade reading level, with a mean of a 6th-grade level, which is recommended by the American Medical Association. The SAM tool result demonstrated adequate-to-superior levels in all four components assessed, including content, appearance, visuals, and layout and design, with a total score of 77%, indicating superior suitability. Conclusions: The authors conclude that the CHF Info App will be suitable and meet the recommended health literacy level for American adult learners. Further testing of the CHF Info App in a longitudinal study is warranted to determine improvement in CHF knowledge.

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Athilingam, P., Jenkins, B., & Redding, B. A. (2019). Reading level and suitability of congestive heart failure (CHF) education in a mobile app (chf info app): Descriptive design study. JMIR Aging, 2(1). https://doi.org/10.2196/12134

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