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Research ArticleResearch Perspectives

The Problem of Subgroup Analyses: An Example from a Trial on Ruptured Intracranial Aneurysms

O. Naggara, J. Raymond, F. Guilbert and D.G. Altman
American Journal of Neuroradiology April 2011, 32 (4) 633-636; DOI: https://doi.org/10.3174/ajnr.A2442
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F. Guilbert
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D.G. Altman
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Article Information

vol. 32 no. 4 633-636
DOI 
https://doi.org/10.3174/ajnr.A2442
PubMed 
21436333

Published By 
American Journal of Neuroradiology
Print ISSN 
0195-6108
Online ISSN 
1936-959X
History 
  • Published online April 12, 2011.

Article Versions

  • Latest version (March 24, 2011 - 07:36).
  • You are viewing the most recent version of this article.
Copyright & Usage 
Copyright © American Society of Neuroradiology

Author Information

  1. O. Naggaraa,b,
  2. J. Raymonda,
  3. F. Guilberta and
  4. D.G. Altmanc
  1. aFrom the Department of Radiology (O.N., J.R., F.G.), International Consortium of Neuroendovascular Centres, Interventional Neuroradiology Research Unit, University of Montreal, CHUM, Notre-Dame Hospital, Montreal, Quebec, Canada
  2. bDepartment of Neuroradiology (O.N.), Paris-Descartes University, Centre Hospitalier Sainte-Anne, Paris, France
  3. cCentre for Statistics in Medicine (D.G.A.), University of Oxford, Oxford, United Kingdom.
  1. Please address correspondence to Jean Raymond, MD, CHUM-Notre-Dame Hospital, Interventional Neuroradiology, 1560 Sherbrooke East, Pavilion Simard, Room Z12909, Montreal, Quebec, Canada H2L 4M1; e-mail: jean.raymond{at}Umontreal.ca
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American Journal of Neuroradiology: 32 (4)
American Journal of Neuroradiology
Vol. 32, Issue 4
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Cite this article
O. Naggara, J. Raymond, F. Guilbert, D.G. Altman
The Problem of Subgroup Analyses: An Example from a Trial on Ruptured Intracranial Aneurysms
American Journal of Neuroradiology Apr 2011, 32 (4) 633-636; DOI: 10.3174/ajnr.A2442

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The Problem of Subgroup Analyses: An Example from a Trial on Ruptured Intracranial Aneurysms
O. Naggara, J. Raymond, F. Guilbert, D.G. Altman
American Journal of Neuroradiology Apr 2011, 32 (4) 633-636; DOI: 10.3174/ajnr.A2442
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  • Article
    • Abstract
    • Abbreviations
    • Subgroup Analysis in Randomized Controlled Trials and Observational Studies
    • An Example of Subgroup Analysis from the ISAT Trial
    • Problems with Subgroup Analyses
    • What Can Give Support to a Subgroup Finding?
    • Conclusions
    • References
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    The Lancet 2013 382 9908
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