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Measures of effect: Relative risks, odds ratios, risk difference, and ‘number needed to treat’

Kidney international, 2007-10, Vol.72 (7), p.789-791 [Peer Reviewed Journal]

2007 International Society of Nephrology ;2008 INIST-CNRS ;Copyright Nature Publishing Group Oct 2007 ;ISSN: 0085-2538 ;EISSN: 1523-1755 ;DOI: 10.1038/sj.ki.5002432 ;PMID: 17653136 ;CODEN: KDYIA5

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  • Title:
    Measures of effect: Relative risks, odds ratios, risk difference, and ‘number needed to treat’
  • Author: Tripepi, G. ; Jager, K.J. ; Dekker, F.W. ; Wanner, C. ; Zoccali, C.
  • Subjects: Biological and medical sciences ; Confidence Intervals ; epidemiology ; Humans ; measures of effect ; Medical sciences ; Nephrology. Urinary tract diseases ; number needed to treat ; Odds Ratio ; relative risk ; Risk ; risk difference
  • Is Part Of: Kidney international, 2007-10, Vol.72 (7), p.789-791
  • Description: Epidemiological studies aim at assessing the relationship between exposures and outcomes. Clinicians are interested in knowing not only whether a link between a given exposure (e.g. smoking) and a certain outcome (e.g. myocardial infarction) is statistically significant, but also the magnitude of this relationship. The ‘measures of effect’ are indexes that summarize the strength of the link between exposures and outcomes and can help the clinician in taking decisions in every day clinical practice. In epidemiological studies, the effect of exposure can be measured both in relative and absolute terms. The risk ratio, the incidence rate ratio, and the odds ratio are relative measures of effect. Risk difference is an absolute measure of effect and it is calculated by subtracting the risk of the outcome in exposed individuals from that of unexposed.
  • Publisher: New York, NY: Elsevier Inc
  • Language: English
  • Identifier: ISSN: 0085-2538
    EISSN: 1523-1755
    DOI: 10.1038/sj.ki.5002432
    PMID: 17653136
    CODEN: KDYIA5
  • Source: MEDLINE
    Alma/SFX Local Collection
    ProQuest Central
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