Lindly Olivia J, Wahl Taylor A, Stotts Noa M, Shui Amy M
Department of Health Sciences, Northern Arizona University, USA.
Department of Biological Sciences, Northern Arizona University, USA.
PEC Innov. 2024 Feb 6;4:100262. doi: 10.1016/j.pecinn.2024.100262. eCollection 2024 Dec.
Health literacy is a critical health determinant, for which few computerized, self-administered assessments exist. This study adapted and tested the reliability of the Newest Vital Sign© (NVS) as a computerized, self-administered health literacy screener.
Phase one involved 33 participants to create response options for a computerized, self-administered NVS (C-NVS). Phase two was a randomized crossover trial to test the consistency of C-NVS and original, interviewer-administered NVS (I-NVS) scores in 89 participants.
Linear mixed-effects regression model results showed a significant carryover effect ( < .001). Crossover trial data from time 1 showed that participants who initially received the C-NVS had significantly higher average scores ( = 5.7, = 0.6) than participants who received the I-NVS ( = 4.5, = 1.5; (87) = 5.25, < .001). Exploratory analysis results showed that when the washout period was longer than 33 days (75th percentile) the carryover effect was not statistically significant ( = .077).
Findings suggest learning can occur when health literacy screeners are administered more than once in less than a month's time and computerized, self-administered health literacy screeners may produce ceiling effects. A universal precautions approach to health literacy therefore remains germane.
健康素养是一个关键的健康决定因素，但几乎没有计算机化的自我管理评估工具。本研究对最新生命体征量表（NVS）进行了改编，并测试了其作为计算机化自我管理健康素养筛查工具的可靠性。
第一阶段有33名参与者，为计算机化自我管理的NVS（C-NVS）创建回答选项。第二阶段是一项随机交叉试验，以测试89名参与者中C-NVS和原始的、由访谈者管理的NVS（I-NVS）分数的一致性。
线性混合效应回归模型结果显示存在显著的遗留效应（<0.001）。来自时间1的交叉试验数据表明，最初接受C-NVS的参与者的平均得分（=5.7，=0.6）显著高于接受I-NVS的参与者（=4.5，=1.5；（87）=5.25，<0.001）。探索性分析结果表明，当洗脱期超过33天（第75百分位数）时，遗留效应无统计学意义（=0.077）。
研究结果表明，当在不到一个月的时间内多次进行健康素养筛查时，可能会发生学习现象，并且计算机化的自我管理健康素养筛查工具可能会产生天花板效应。因此，采取普遍预防措施来对待健康素养仍然很有必要。
