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A statistical method for quantitative evaluation of the progression of chronic diseases: the mean score graph (MSG)
Author(s) -
Zilber N.,
Manor O.,
Inzelberg R.,
Kahana E.,
Korczyn A. D.
Publication year - 1998
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/(sici)1097-0258(19981030)17:20<2395::aid-sim932>3.0.co;2-q
Subject(s) - graph , medicine , computer science , statistics , mathematics , theoretical computer science
We present a quantitative method of evaluation of the clinical course of chronic disease with long‐term progressive deterioration. The method takes into account information on all patients, whatever their duration of follow‐up. We present the ‘mean score graph’ as a descriptive device which is an extension of a survival graph. The description of progression of idiopathic torsion dystonia, comparing progression in males and females, is used as an example of the application. A test for group comparison is described. © 1998 John Wiley & Sons, Ltd.