Advances and Applications in Statistics
Volume 1, Issue 1, Pages 49 - 58
(April 2001)
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A NEW MEASURE OF ATTRIBUTABLE RISK AND ITS STRATIFICATION
Dane W. Wu (U. S. A.)
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Abstract: Statistical methods for estimating attributable risk have undergone considerable development since Levin’s measure of attributable risk was first proposed in 1953 [Acta Unio. Int. Contra. Cancrum. 9 (1953), 531-541]. To enrich the existing literatures, this paper presents a new measure of attributable risk called “relative attributable risk (RAR)”. RAR serves as a natural extension of attributable risk. It explicitly indicates the reference level or baseline of exposure and hence avoids the common difficulty of selecting baseline in case-control studies on polychotomous risk factors. Moreover, RAR provides flexibility for estimating risk in cases of multiple level exposures attributed to multiple risk factors. In this paper, some basic properties of RAR and stratification of multiple risk factors are discussed. |
Keywords and phrases: relative attributable risk, stratification, multiple risk factors. |
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