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Comparison of Evidence of Treatment Effects in Randomized and Nonrandomized Studies.

Authors :
Ioannidis, John P. A.
Haidich, Anna-Bettina
Pappa, Maroudia
Pantazis, Nikos
Kokori, Styliani I.
Tektonidou, Maria G.
Contopoulos-Ioannidis, Despina G.
Lau, Joseph
Source :
JAMA: Journal of the American Medical Association. 8/15/2001, Vol. 286 Issue 7, p821. 10p. 3 Charts, 3 Graphs.
Publication Year :
2001

Abstract

Reports on a study to compare results of randomized and nonrandomized studies that evaluated medical interventions and to examine characteristics that may explain discrepancies between the studies. Context; Objectives; Data sources; Study selection; Data extraction; Data Synthesis; Conclusions.

Details

Language :
English
ISSN :
00987484
Volume :
286
Issue :
7
Database :
Academic Search Index
Journal :
JAMA: Journal of the American Medical Association
Publication Type :
Academic Journal
Accession number :
5013567
Full Text :
https://doi.org/10.1001/jama.286.7.821