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What is a risk ratio?

Published online by Cambridge University Press:  18 May 2011

Andrea Cipriani ,
Michela Nosè  and
Corrado Barbui
Andrea Cipriani*
Affiliation:
Department of Medicine and Public Health, Section of Psychiatry and Clinical Psychology, University of Verona
Michela Nosè
Affiliation:
Department of Medicine and Public Health, Section of Psychiatry and Clinical Psychology, University of Verona
Corrado Barbui
Affiliation:
Department of Medicine and Public Health, Section of Psychiatry and Clinical Psychology, University of Verona
*
Address for correspondence: Dr. A. Cipriani, Department of Medicine and Public Health, Section of Psychiatry and Clinical Psychology, University of Verona, Piazzale L.A. Scuro, 10, 37134 Verona, Italy. Fax: +39-045-585871 E-mail: andrea.cipriani@univr.it
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Abstract

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Keywords

relative riskodds ratioabsolute risk reductionnumber needed to treatstatistics.
Type
ABC of Methodology
Information
Epidemiology and Psychiatric Sciences , Volume 16 , Issue 1 , March 2007 , pp. 20 - 21
Copyright
Copyright © Cambridge University Press 2007

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References

Bland, J.M. & Altman, D.G. (2000). Statistics notes. The odds ratio. British Medical Journal 320, 1468.CrossRefGoogle ScholarPubMed
Cipriani, A. & Barbui, C. (2006). What is a forest plot? Epidemiologia e Psichiatria Sociale 15, 258–259.CrossRefGoogle ScholarPubMed
Cook, R.J. & Sackett, D.L. (1995). The number needed to treat: a clinically useful measure of treatment effect. British Medical Journal 310, 452–454.CrossRefGoogle Scholar
Streiner, D.L. (2005). With apologies to Albert: everything is not relative. Evidence Based Mental Health 8, 93.CrossRefGoogle Scholar