Why do the 2 age-adjusted rates differ from each other? Yes – you adjusted to 2
ID: 3068968 • Letter: W
Question
Why do the 2 age-adjusted rates differ from each other? Yes – you adjusted to 2 different populations, but that is not a sufficient answer – tell me what is different about these populations that results in different adjusted rates. (1 pt)
Age group
Population A (from the article)
US standard million, 2000
Age-specific death rate per 1000
Reference Population
Expected deaths
Population
Expected deaths
0-24
1.94
11,000
21.34
353,347
25-49
5.45
17,000
92.65
370,304
50-74
41.11
20,000
822.20
216,000
75 & above
83.33
3,000
249.99
60,349
Total
51,000
1186.18
1,000,000
Age group
Population A (from the article)
US standard million, 2000
Age-specific death rate per 1000
Reference Population
Expected deaths
Population
Expected deaths
0-24
1.94
11,000
21.34
353,347
25-49
5.45
17,000
92.65
370,304
50-74
41.11
20,000
822.20
216,000
75 & above
83.33
3,000
249.99
60,349
Total
51,000
1186.18
1,000,000
Explanation / Answer
Ideally the standard population has to be chosen according the population under question. An example of a standard population would be any national population for a particular year, eg Canada, 2010.
These are the issues that have to be considered when choosing a standard population
- The standard should reflect the average structure of the population over a period of time
- The standard should be stable, i.e it should not change frequently over a short period of time
- The characteristics of the standard (eg, age and gender) should be similar to that of the population being studied.
- It should be used consistently so that rates from different populations are comparable.
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