Mani Nandita S, Ottosen Terri, Fratta Megan, Yu Fei
J Med Libr Assoc. 2021 Jul 1;109(3):422-431. doi: 10.5195/jmla.2021.1165.
The COVID-19 pandemic highlights the public's need for quality health information that is understandable. This study aimed to identify (1) the extent to which COVID-19 messaging by state public health departments is understandable, actionable, and clear; (2) whether materials produced by public health departments are easily readable; (3) relationships between material type and understandability, actionability, clarity, and reading grade level; and (4) potential strategies to improve public health messaging around COVID-19.
Based on US Centers for Disease Control and Prevention statistics from June 30, 2020, we identified the ten states with the most COVID-19 cases and selected forty-two materials (i.e., webpages, infographics, and videos) related to COVID-19 prevention according to predefined eligibility criteria. We applied three validated health literacy tools (i.e., Patient Education Materials Assessment Tool, CDC Clear Communication Index, and Flesch-Kincaid Grade Level) to assess material understandability, actionability, clarity, and readability. We also analyzed correlations between scores on the three health literacy tools and material types.
Overall, COVID-19 materials had high understandability and actionability but could be improved in terms of clarity and readability. Material type was significantly correlated with understandability, actionability, and clarity. Infographics and videos received higher scores on all tools.
Based on our findings, we recommend public health entities apply a combination of these tools when developing health information materials to improve their understandability, actionability, and clarity. We also recommend using infographics and videos when possible, taking a human-centered approach to information design, and providing multiple modes and platforms for information delivery.
新冠疫情凸显了公众对易懂的高质量健康信息的需求。本研究旨在确定:(1)各州公共卫生部门发布的新冠疫情信息在多大程度上易懂、可行且清晰;(2)公共卫生部门制作的材料是否易于阅读;(3)材料类型与易懂性、可行性、清晰度及阅读年级水平之间的关系;(4)改善围绕新冠疫情的公共卫生信息传递的潜在策略。
根据美国疾病控制与预防中心2020年6月30日的统计数据,我们确定了新冠病例数最多的十个州,并根据预先确定的入选标准,选择了42份与新冠预防相关的材料(即网页、信息图表和视频)。我们应用了三种经过验证的健康素养工具(即患者教育材料评估工具、疾病预防控制中心清晰沟通指数和弗莱施-金凯德年级水平)来评估材料的易懂性、可行性、清晰度和可读性。我们还分析了三种健康素养工具得分与材料类型之间的相关性。
总体而言,新冠疫情材料具有较高的易懂性和可行性,但在清晰度和可读性方面仍有提升空间。材料类型与易懂性、可行性和清晰度显著相关。信息图表和视频在所有工具上得分更高。
基于我们的研究结果,我们建议公共卫生实体在开发健康信息材料时,结合使用这些工具,以提高其易懂性、可行性和清晰度。我们还建议尽可能使用信息图表和视频,采用以人为本的信息设计方法,并提供多种信息传递模式和平台。