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Critical Care
Published in: Critical Care 4/2004

01-08-2004 | Review

Statistics review 11: Assessing risk

Authors: Viv Bewick, Liz Cheek, Jonathan Ball

Published in: Critical Care | Issue 4/2004

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Abstract

Relative risk and odds ratio have been introduced in earlier reviews (see Statistics reviews 3, 6 and 8). This review describes the calculation and interpretation of their confidence intervals. The different circumstances in which the use of either the relative risk or odds ratio is appropriate and their relative merits are discussed. A method of measuring the impact of exposure to a risk factor is introduced. Measures of the success of a treatment using data from clinical trials are also considered.
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Rivers E, Nguyen B, Havstad S, Ressler J, Muzzin A, Knoblich B, Peterson E, Tomlanovich M: Early goal-directed therapy in the treatment of severe sepsis and septic shock. N Engl J Med. 2001, 345: 1368-1377. 10.1056/NEJMoa010307.CrossRefPubMed
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Bland M: An Introduction to Medical Statistics. 2001, Oxford, UK: Oxford University Press, 3
Metadata
Title
Statistics review 11: Assessing risk
Authors
Viv Bewick
Liz Cheek
Jonathan Ball
Publication date
01-08-2004
Publisher
BioMed Central
Published in
Critical Care / Issue 4/2004
Electronic ISSN: 1364-8535
DOI
https://doi.org/10.1186/cc2908

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