Question
Suppose that an investigation of the association between regular physical activity and ovarian cancer reveals that the incidence rate of ovarian cancer in women who engaged in regular physical activity was 30 per 100,000 woman-years a follow-up, while the rate among women who did not engage in regular activity was 45 for 100,000 woman-years the follow up.
Use these data to compute the incidence rate ratio of ovarian cancer for women who are physically active versus women were not.
State in words your interpretation of this measure.
Compute the incidence rates difference of ovarian cancer for women who are physically active versus women who are not.
State in words your interpretation of this measure.