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Title: | Risk estimation in retrospective studies | Authors: | WEI XING | Keywords: | risk, case-control study, odds ratio, prevalence, Bayes' theorem | Issue Date: | 23-Nov-2009 | Citation: | WEI XING (2009-11-23). Risk estimation in retrospective studies. ScholarBank@NUS Repository. | Abstract: | The analysis of data arising from retrospective studies traditionally followed methods involving estimation of relative risks and/or odds ratios. Little attention was given to estimation of risks, presumably due to constraint of such experimental designs, as well as the ease of modelling of odds ratio by logistic regression. Here we present some results for the estimation of risks in a general 2 by k contingency table setting, for a dichotomous outcome variable and under some reasonable assumption of prevalence. We also examine the properties of proposed estimators, and apply them to a largescale genome-wide association (GWA) study data to demonstrate some relevance of the methods. |
URI: | http://scholarbank.nus.edu.sg/handle/10635/17094 |
Appears in Collections: | Master's Theses (Open) |
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