Approaches and Recommendations for Estimating Minimally Important Differences for Health-Related Quality of Life Measures

Published in: Journal of Chronic Obstructive Pulmonary Disease, v.2, no. 1, Mar. 2005, p. 63-67

Posted on RAND.org on January 01, 2005

by Ron D. Hays, Sepideh S. Farivar, Honghu H. Liu

The authors describe currently available approaches for estimating the minimally important difference (MID) and their associated strengths and weaknesses. Specifically, we show that anchor-based methods should be the primary method of estimating the MID because of the limitations of distribution-based methods. In addition, we provide recommendations for estimating the MID in future research.

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