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Given the results of the following stratied analyses calculating rate ratios (RR) between an exposure and a disease, indicate if there is evidence of confounding,
Given the results of the following stratied analyses calculating rate ratios (RR) between an exposure and a disease, indicate if there is evidence of confounding, effect modication, or neither by a third variable. 3. Crude RR = 4.2 RR when 3rd Variable Present = 4.1 RR when 3rd Variable Absent = 4.3 v [Select] Confounding Effect modification Neither confounding nor effect modification J Crude RR = 4.2 RR when 3rd Variable Present = 1.9 RR when 3rd Variable Absent = 1.8 [ Select] v
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