Blood pressure measurements on adult males 30-39 years of age were obtained in a survey of a representative sample of twin cities households. to compare the frequency of hypertension in the white and non-white population surveyed, the most appropriate measure is the a. incidence rate b. prevalence c. race-specific prevalence d. race-specific incidence rate

C. race-specific prevalence

Explanation:

Incidence rate refers to the rate of new cases of hypertension.Prevalence refers to the total number of cases of hypertension at the point of time the survey happened.Because what's wanted is to compare the frequency of hypertension in two groups of adult males 30-39 years of age:Prevalence is the right measure to use, because the total number of cases is what's wanted, not only the new cases. Race-specific prevalence has to be used instead of overall prevalence, because the two groups being compared are defined by race.

Ibelieve the answers are a and c.