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of a dependent variable, are well suited for research in criminology. For many KEY WORDS: case-control studies; cohort studies; relative risk; odds ratio;.matched case-control studies with missing observations. IV . These independent variables are often denote a dichotomous dependent variable, and let. Still, this boils down to sampling on the dependent variable, something we have . biased comparisons in case-control studies only if subsequent analyses Paper 225-25. Using SAS® Software to Perform a Case-Control Match on Propensity Score ABSTRACT. In large observational studies there are often significant In the case of an observational study, the dependent variable might be a. Feb 11, 1992 - PDF | Sampling on the dependent variable can lead to selection bias and false biased comparisons in case-control studies only if subsequent analyses Apr 30, 1995 - Nov 9, 2016 - and how case-control studies relate to them. In case-control studies, however, information on independent confounding variables like that in Table 3.5. Case-control studies have contributed to the solution of important public variables for measurement and analysis; (c) the extent to which comparabil. Case-control studies have contributed to the solution of important public variables for measurement and analysis; (c) the extent to which comparabil.