Improved estimates of floating absolute risk

Floating absolute risks are an alternative way of presenting relative risk estimates for polychotomous risk factors. Instead of choosing one level of the risk factor as a reference category, each level is assigned a ‘floated’ variance which describes the uncertainty in risk without reference to anot...

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Bibliographic Details
Published in:Statistics in medicine 2004-01, Vol.23 (1), p.93-104
Main Author: Plummer, Martyn
Format: Article
Language:English
Subjects:
Algorithms
Confidence Intervals
Data Interpretation, Statistical
dose response
Dose-Response Relationship, Drug
EM algorithm
floating absolute risk
Humans
misspecified models
relative risk
Risk Assessment - statistics & numerical data
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Summary:Floating absolute risks are an alternative way of presenting relative risk estimates for polychotomous risk factors. Instead of choosing one level of the risk factor as a reference category, each level is assigned a ‘floated’ variance which describes the uncertainty in risk without reference to another level. In this paper, a method for estimating the floated variances is presented that improves on the previously proposed ‘heuristic’ method. The estimates may be calculated iteratively with a simple algorithm. A benchmark for validating the floated variance estimates is also proposed and an interpretation of floating confidence intervals is given. Copyright © 2004 John Wiley & Sons, Ltd.
ISSN:0277-6715
1097-0258
DOI:10.1002/sim.1485