Ruiz Jorge G, Andrade Allen D, Garcia-Retamero Rocio, Anam Ramanakumar, Rodriguez Remberto, Sharit Joseph
Laboratory of E-learning and Multimedia Research, Bruce W. Carter VA Geriatric Research Education and Clinical Center (GRECC), Miami, USA; University of Miami Miller School of Medicine, Miami, USA.
Patient Educ Couns. 2013 Dec;93(3):394-402. doi: 10.1016/j.pec.2013.06.026. Epub 2013 Aug 1.
Experts recommend that adults have their global cardiovascular risk assessed. We investigated whether icon arrays increase understanding, recall, perception of CVR, and behavioral intent as compared with numerical information.
Male outpatient veterans, at an intermediate to high cardiovascular risk participated in a randomized controlled trial of a computer tutorial presenting individualized risk. Message format was presented in 3 formats: percentages, frequencies, and frequencies with icon arrays. We assessed understanding immediately (T1) and recall at 20 min (T2) and 2 weeks (T3) after the intervention. We assessed perceptions of importance/seriousness, intent to adhere, and self-efficacy at T1. Self-reported adherence was assessed at T3.
One-hundred and twenty male veterans participated. Age, education, race, health literacy and numeracy were comparable at baseline. There were no differences in understanding at T1 [p = .31] and recall at T3 [p = .10]. Accuracy was inferior with frequencies with icon arrays than percentages or frequencies at T2 [p ≤ .001]. There were no differences in perception of seriousness and importance for heart disease, behavioral intent, self-efficacy, actual adherence and satisfaction.
Icon arrays may impair short-term recall of CVR.
Icon arrays will not necessarily result in better understanding and recall of medical risk in all patients.
专家建议对成年人进行整体心血管风险评估。我们调查了与数字信息相比，图标阵列是否能提高对心血管风险（CVR）的理解、记忆、认知以及行为意图。
心血管风险处于中高程度的男性门诊退伍军人参与了一项关于计算机教程的随机对照试验，该教程展示个性化风险。信息格式以三种形式呈现：百分比、频率以及带有图标阵列的频率。我们在干预后立即（T1）、20分钟后（T2）以及2周后（T3）评估理解情况。我们在T1评估对重要性/严重性的认知、坚持的意图以及自我效能感。在T3评估自我报告的坚持情况。
120名男性退伍军人参与其中。基线时，年龄、教育程度、种族、健康素养和算术能力具有可比性。T1时的理解情况[p = 0.31]和T3时的记忆情况[p = 0.10]没有差异。在T2时，带有图标阵列的频率的准确性低于百分比或频率[p ≤ 0.001]。在对心脏病的严重性和重要性的认知、行为意图、自我效能感、实际坚持情况和满意度方面没有差异。
图标阵列可能会损害对心血管风险的短期记忆。
图标阵列不一定会使所有患者更好地理解和记忆医疗风险。
