Use of the Reliable Change Index to evaluate clinical significance in SF-36 outcomes
Use of the Reliable Change Index to evaluate clinical significance in SF-36 outcomes
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DOI：
10.1023/a:1016350431190
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发表时间：
2002-09-01
影响因子：
3.5
通讯作者：
Splaine, M
中科院分区：
文献类型：
--
作者：
Ferguson, RJ;Robinson, AB;Splaine, M
SF-36 健康调查是最广泛使用的功能健康自我报告测量方法。它通常用于随机对照试验 (RCT) 和医疗或其他卫生服务的非对照评估。然而，与统计学上的显着差异相比，确定干预前后 SF-36 结果的临床显着变化通常不是医学结果研究的重点。我们建议将可靠变化指数 (RCI) 与 SF-36 规范结合使用，作为研究人员、提供者团体和医疗保健政策制定者在使用 SF-36 作为主要衡量标准时确定具有临床意义的医疗保健结果的一种方法。 RCI 是一种统计数据，用于确定给定自我报告测量所需的变化分数大小，以被认为具有统计可靠性。 RCI 已用于确定心理健康和行为医学结果研究中的临床显着变化，但并未广泛应用于医疗结果研究。已计算并呈现了 SF-36 的可用 RCI 表。还提供了如何使用 RCI 表的说明和案例说明。最后，讨论了使用 SF-36 规范和 RCI 来确定临床显着结果的局限性和警示指南。
The SF-36 Health Survey is the most widely used self-report measure of functional health. It is commonly used in both randomized controlled trials (RCT) and non-controlled evaluation of medical or other health services. However, determining a clinically significant change in SF-36 outcomes from pre-to-post-intervention, in contrast to statistically significant differences, is often not a focus of medical outcomes research. We propose use of the Reliable Change Index (RCI) in combination with SF-36 norms as one method for researchers, provider groups, and health care policy makers to determine clinically significant healthcare outcomes when the SF-36 is used as a primary measure. The RCI is a statistic that determines the magnitude of change score necessary of a given self-report measure to be considered statistically reliable. The RCI has been used to determine clinically significant change in mental health and behavioral medicine outcomes research, but is not widely applied to medical outcomes research. A usable table of RCIs for the SF-36 has been calculated and is presented. Instruction and a case illustration of how to use the RCI table is also provided. Finally, limitations and cautionary guidelines on using SF-36 norms and the RCI to determine clinically significant outcome are discussed.