The nurse is comparing populations with different distributions ...

[james9437]

The nurse is comparing populations with different distributions of obesity. Which rate will be helpful in making a comparison of heart disease mortality?
 
  A) Crude rate
  B) Specific rate
  C) Adjusted rate
  D) Incidence rate

Question 2

Which describes relative risk?
 
  A) Incidence among those exposed/incidence rate among those not exposed
  B) Odds of having the condition when the suspected factor is present/odds of having the condition when not exposed to the factor
  C) Measures the difference between the incidence rates for those exposed and those not exposed to the risk factor
  D) Identifies whether those in the exposed group will develop the disease or condition when compared with those not exposed

[tuate]

Answer to Question 1

Ans: C
The adjusted rate is a summary measure in which statistical procedures remove the effect of differences in the composition of the various populations. Rates computed for a population as a whole are crude rates. Rates calculated for subgroups are specific rates. Incidence rates measure those exposed and not exposed to a suspected factor.

Answer to Question 2

Ans: A
The relative risk expresses the risk ratio of the incidence rate of those exposed and those not exposed to the suspected factor. Odds ratio is a simple mathematical ratio of the odds in favor of having a specific health condition when the suspected factor is present and the odds in favor of having the condition when the factor is absent. Attributable risk measures the difference between the incidence rates for those exposed and those not exposed to the risk factor. Relative risks and odds ratios provide a point estimate (a number) that identifies whether those in the exposed group will develop the disease or condition when compared with those not exposed.