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Consider the situation in a cohort study where the crude

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Reference no: EM13628354

Consider the situation in a cohort study where the crude risk ratio is 2.5, stratum 1 odds ratio is 1, and stratum 2 odds ratio is 4.0. Which of the following is present: Select one:

a. Positive confounding

b. Negative confounding

c. No effect modification or confounding

d. Effect modification, confounding irrelevant

Reference no: EM13628354

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