Odds Ratio Question?

Odds Ratio Question?

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 odd’s ratio of cancer in town A compared to town B?