The following table appeared in a recent report: Race-Adjusted Death Rates of co

ID: 3131020 • Letter: T

Question

The following table appeared in a recent report: Race-Adjusted Death Rates of colon Cancer in State Y, per 100,000 Time Period Males Females 1935 – 1938 4.0 2.7 1940 – 1947 5.2 2.6 1953 – 1958 6.1 2.3 1961 – 1965 0.7 1.9 The most likely cause for adjusting the rates by race in the table above is: Selected Answer: D. Rates of the disease vary by gender. Answers: A. The populations being compared differ by race and the outcome rates vary by race. B. The time periods being compared include different numbers of years in the table above. C. We have reason to suspect a cohort phenomenon. D. Rates of the disease vary by gender. E. The populations being compared differ in age structure and race. F. The groups being compared demonstrate different trends. G. The populations being compared differ in age structrue and the outcome rates vary by age.'

Explanation / Answer

Given data is

Race-Adjusted Death Rates of colon Cancer in State Y, per 100,000

Time Period

Males

Females

1935 – 1938

4.0

2.7

1940 – 1947

5.2

2.6

1953 – 1958

6.1

2.3

1961 – 1965

0.7

1.9

The most likely cause for adjusting the rates by race in the table above is:

ANS: We have reason to suspect a cohort phenomenon