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The graphical representation of clinical trials with particular reference to measurements over time
Author(s) -
Senn S. J.,
Auclair P.,
Johnson Samuel
Publication year - 1990
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/sim.4780091108
Subject(s) - clinical trial , mistake , computer science , representation (politics) , basis (linear algebra) , statistics , medicine , mathematics , pathology , geometry , politics , political science , law
Clinical trials are frequently analysed as if they were surveys when they are in fact experiments. In particular the experimental basis of clinical trials is rarely reflected in the graphs which are used to illustrate them. Proposals are made, and illustrated by example, as to how appropriate figures may be devised, both for parallel‐group designs and for crossover trials, to illustrate the experimental nature of clinical trials with measurements over time. It is incident to physicians, I am afraid, beyond all men, to mistake subsequence for consequence.