what is the term for the number of deaths per 1,000 people in a population in a given year?
What is the term for the number of deaths per 1,000 people in a population in a given year?
Answer:
The term for the number of deaths per 1,000 people in a population in a given year is called the “Crude Death Rate” (CDR).
Crude Death Rate (CDR) is a demographic measure that quantifies the rate at which deaths occur in a population, scaled to the size of that population per unit of time. It is commonly expressed as the number of deaths per 1,000 individuals per year.
Formula for Crude Death Rate
The formula to calculate the Crude Death Rate is:
\text{CDR} = \left( \frac{\text{Total number of deaths in a year}}{\text{Total population}} \right) \times 1000
Example Calculation
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Step 1: Determine the Total Number of Deaths
- For example, if in a given year, there were 1,000 deaths in a population.
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Step 2: Determine the Total Population
- Suppose the total population at the midpoint of the year is 50,000 people.
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Step 3: Apply the Formula
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Substitute these numbers into the formula:
\text{CDR} = \left( \frac{1000}{50000} \right) \times 1000
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Step 4: Simplify the Calculation
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Perform the division first:
\frac{1000}{50000} = 0.02 -
Then multiply by 1,000 to express it per 1,000 people:
0.02 \times 1000 = 20
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Final Answer:
So, the Crude Death Rate in this example is 20 deaths per 1,000 people in a given year.
Understanding the Crude Death Rate is essential for demographic studies, public health policies, and understanding the health status of a population. It helps in identifying trends in mortality and can indicate the effectiveness of healthcare systems, living conditions, and general quality of life in a region.