http://aja.sagepub.com/content/29/6/492?etoc
- Syed H. Shabbir, BSc1
- Amy E. Sanders, MD, MS1⇑
- Amy E. Sanders, MD, MS, Albert Einstein College of Medicine, Louis and Dora Rousso Building, 1165 Morris Park Avenue, Room 311, Bronx, NY 10461, USA. Email: amy.sanders@einstein.yu.edu
Abstract
Clinical research traditionally relies on
measures of statistical significance to assess the strength of evidence
while less
attention is paid to the practical import of the
results. The objective of this study was to provide a critical overview
of
the current approaches to measuring clinical
significance in dementia research and to provide suggestions for future
research.
A systematic search was conducted of Medline and
Embase for original, English-language, peer-reviewed articles published
before
July 2012. A total of 18 articles met the inclusion
criteria, of which 13 used multiple approaches to measure clinical
significance.
In all, 5 articles used expert opinion as anchors; 4
also used distribution-based approaches. In all, 8 articles used Goal
Attainment Scaling; 7 of these also relied on
clinician-based impressions of change. Another 3 articles used only
clinical
global impressions of change, 1 article used
changes in symptomatology, and another used the value from literature.
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