Answer:
The option D) All of the above is correct
The major disadvantage of crude rates is that:
- They may not allow for comparison of populations that differ
- They do not permit comparisons of populations that vary in age distribution.
- They are difficult to calculate from available data sources.
Hence options A ,B and C are correct
Step-by-step explanation:
Given that crude rate
To find the disadvantage of crude rate :
A crude rate is the number of new cases (or deaths) occurring in a specified [tex]\frac{population}{year}[/tex], it can be expressed as the number of cases per 100,000 population at risk.
The major disadvantage of crude rates is that:
- They may not allow for comparison of populations that differ
- They do not permit comparisons of populations that vary in age distribution.
- They are difficult to calculate from available data sources.
Hence options A ,B and C are correct
∴ The option D) All of the above is correct.