Index to Chiropractic Literature
Index to Chiropractic Literature
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ID 21147
  Title Reporting improvement from patient-reported outcome measures: A review
Journal Clin Chiropr. 2010 Mar;13(1):15-22
Peer Review Yes
Publication Type Review
Abstract/Notes The aim of this paper is to offer a comprehensive review of methods to determine clinically important improvement from results derived from patient-reported outcome measures.

The dichotomization of change scores to classify patients as either clinically improved or non-clinically improved is a simple method to clarify results derived from patient-reported outcome measures. It appears that both direct methods, using Global Perceived Effect (GPE) scales, and indirect methods, using distribution- and anchor-based methods, have a number of strengths and limitiations. Moreover, there is convergence between the different methods of achieving the proportion of patients improved and, thus, it is difficult to recommend a single method for its determination.

It is suggested that patients be categorized into clinically improved and clinically non-improved groups using a selection of procedures composed of a direct method and indirect methods including both distribution- and anchor-based approaches.

This abstract is reproduced with the permission of the publisher; full text by subscription.

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