Question 2 (64 points)
Using the information in Table 2, complete Table 3. Use the direct approach for age-adjusted rate calculation. The standard population is created by combining the two populations within each age group.
Table 2: Death Data in A town and B town in 2019
Age Population A Number of Deaths Population B Number of Deaths
<1 3,000 20 7,000 100
1-14 5,000 30 22,000 10
15-34 6,000 75 36,000 50
35-54 15,000 36 22,000 90
55-64 7,000 220 9,000 160
65+ 20,000 1,800 15,000 1,250
Table 3: Standard Population by age, age specific death rates in two populations
Age Standard Population (A+B) Death Rate in A Expected Deaths at A’s Rate Death Rate in B Expected Deaths at B’s Rate
<1 10,000
1-14 23,000
15-34 37,000
35-54 36,000
55-64 20,000
65+ 36,000
Totals 162,000 ----------- -------------
a. Calculate population A’s crude death rate per 100. [2]
b. Calculate population B’s crude death rate per 100. [2}
c. Calculate age-specific death rates for population A and add them to the table [12]
d. Calculate age-specific death rates for population B and add them to the table [12]
e. Calculate expected deaths for population A and add them to the table [12]
f. Calculate expected deaths for population B and add them to the table [12]
g. Calculate the age-adjusted death rate (A) per 100. [4]
h. Calculate the age-adjusted death rate (B) per 100. [4]
i. Briefly explain whether or not the crude mortality rates were confounded by age. [4]