(Answered) The following data are from a prospective cohort study in

Statistics

The following data are from a prospective cohort study in which a sample of people from a town near a toxic waste site was compared to that from a similar town a hundred miles away in the same state.

The outcome was incidence of all types of cancer over a 5 year period.

Town Cancer - yes Cancer - no

A 42 458

B 37 763

What is the odds ratio of cancer in town A compared to town B?

Which is the better measure of association in this study? Why?

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