背景:图标阵列已被证明是传达医疗风险信息的有效方法。然而,在实践中,用于可视化个人风险的图标数组通常在图标的类型和颜色上有所不同。这项研究的目的是检查图标类型和颜色对心血管风险的感知和回忆的影响,关于颜色如何影响图标数组的感知知之甚少。
方法:共有866名年龄在40至90岁之间的参与者完成了一项在线实验,这些参与者在性别和年龄方面代表了德国人口。使用2×2的科目间设计,参与者被随机分配到4个实验组中的1个.他们使用图标阵列接收他们假设的10年心血管风险,该图标阵列根据图标类型(笑脸v.人)和颜色(黑/白v.红/黄)而变化。我们测量了风险感知,情绪反应,采取行动降低风险的意图(例如,增加一个人的身体活动),风险召回,和图形评估/可信度,以及算术和图形素养。
结果:使用人图标的图标阵列得到了更积极的评价。图标或颜色对风险感知没有影响,情绪反应,采取行动降低风险的意图,或图的可信度。虽然更多的数字/图形识字的参与者更有可能正确地回忆提出的风险估计,图标类型和颜色不会影响正确召回的概率。
结论:所测试的图标阵列的感知差异相当小,这表明它们可能同样适合传达医疗风险。进一步研究这些结果在其他颜色上的鲁棒性,图标,和风险领域可以添加到视觉辅助设计的指导方针。
结论:使用不同的图标和颜色不会影响感知和回忆10年心血管风险的概率,情绪反应,或降低当前风险的意图。具有人图标的图标阵列被更积极地评价。没有证据表明所研究的图标数组的有效性根据个人的数字或图形素养水平而变化,对于有或没有CVD病史的患者或对于CVD风险增加的药物治疗患者,这也没有区别.
BACKGROUND: Icon arrays have been shown to be an effective method for communicating medical risk information. However, in practice, icon arrays used to visualize personal risks often differ in the type and color of the icons. The aim of this study was to examine the influence of icon type and color on the perception and recall of cardiovascular risk, as little is known about how color affects the perception of icon arrays.
METHODS: A total of 866 participants aged 40 to 90 years representative of the German population in terms of gender and age completed an online experiment. Using a 2 × 2 between-subjects design, participants were randomly assigned to 1 of 4 experimental groups. They received their hypothetical 10-year cardiovascular risk using an icon array that varied by icon type (smiley v. person) and color (black/white v. red/yellow). We measured risk perception, emotional response, intentions of taking action to reduce the risk (e.g., increasing one\'s physical activity), risk recall, and graph evaluation/trustworthiness, as well as numeracy and graphical literacy.
RESULTS: Icon arrays using person icons were evaluated more positively. There was no effect of icons or color on risk perception, emotional response, intentions of taking action to reduce the risk, or trustworthiness of the graph. While more numerate/graphical literate participants were more likely to correctly recall the presented risk estimate, icon type and color did not influence the probability of correct recall.
CONCLUSIONS: Differences in the perception of the tested icon arrays were rather small, suggesting that they may be equally suitable for communicating medical risks. Further research on the robustness of these results across other colors, icons, and risk domains could add to guidelines on the design of visual aids.
CONCLUSIONS: The use of different icons and colors did not influence the perception and the probability of recalling the 10-year cardiovascular risk, the emotional response, or the intentions to reduce the presented risk.Icon arrays with person icons were evaluated more positively.There was no evidence to suggest that the effectiveness of the studied icon arrays varied based on individuals\' levels of numerical or graphical literacy, nor did it differ between people with or without a history of CVD or on medication for an increased CVD risk.