Assessing the clinical significance of single items relative to summated scores
Assessing the clinical significance of single items relative to summated scores
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DOI：
10.4065/77.5.479
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发表时间：
2002-05-01
影响因子：
8.9
通讯作者：
Varricchio, C
中科院分区：
文献类型：
--
作者：
Sloan, JA;Aaronson, N;Varricchio, C
测量一个人的生活质量（QOL）需要多少项目？本文介绍了单项目和总分（从多个项目）作为生活质量的措施的优点和缺点。我们还讨论了使用单一的全球措施与多个子指数作为衡量生活质量。在这篇文章中反复出现的主要主题是定义明确的研究目标，研究设置和选择单项与总分测量生活质量之间的关系。研究的概念框架，与测量的概念拟合，以及评估的目的都应该在选择QOL测量时考虑。没有“金标准”的生活质量措施可以推荐，因为没有“一刀切”。“单一项目的优点是简单，但代价是细节。多项目指数的优点是提供了一个完整的配置文件的QOL组件结构的成本增加的负担和问潜在的不相关的问题。这两种类型的指数并不相互排斥，可以在单个研究或临床环境中一起使用。
How many items are needed to measure an individual's quality of life (QOL)? This article describes the strengths and weaknesses of single items and summated scores (from multiple items) as QOL measures. We also address the use of single global measures vs multiple subindices as measures of QOL. The primary themes that recur throughout this article are the relationships between well-defined research objectives, the research setting, and the choice single item vs summated scores to measure QOL. The conceptual framework of the study, the conceptual fit with the measure, and the purpose of the assessment should all be considered when choosing a measure of QOL. No "gold standard" QOL measure can be recommended because no "one size fits all." Single items have the advantage of simplicity at the cost of detail. Multiple-item indices have the advantage of providing a complete profile of QOL component constructs at the cost of increased burden and of asking potentially irrelevant questions. The 2 types of indices are not mutually exclusive and can be used together in a single research study or in the clinical setting.