City A suffered some political changes and was divided into two cities named Alpha and Beta.Five years after the division,mortality rates in both cities are compared.The all-cause mortality rate in City Alpha is much higher than the rate in Beta.When looking at the demographic characteristics in the cities,you notice that the age distribution is almost exactly the same in both cities.What do you expect to find when the age-adjusted mortality rates are calculated and compared?
A) City Alpha will have a much higher age-adjusted mortality rate than Beta.
B) City Beta will have a much higher age-adjusted mortality rate than Alpha.
C) The age-adjusted mortality rate will be much lower than the unadjusted rate in Alpha.
D) The age-adjusted mortality rate will be much lower than the unadjusted rate in Beta.
E) The answer cannot be determined without the actual numbers.

Question

Quizplus · Accepted Answer

Because the age distribution in both cities is almost the same,we do not expect to see differences between the age-adjusted and the unadjusted mortality rates.Therefore,even after adjusting for age,Alpha will still have a much higher mortality rate than Beta.

City a Suffered Some Political Changes and Was Divided into Two