Page 21 - Health, Population and Environment Education 10

Mathematically,
Total deaths in a place in a year
CDR = × 1000
Mid year population of that place in a year

It is also expressed per 1000.
In CDR, only two data, total deaths and mid year population are required. So, it is easy
to calculate and compare. But, it is rough estimation as total deaths of any age groups are
considered in mid year population. According to 2011 A.D. census, CDR of Nepal was 7.3
per 1000.

Worked out example: 5
In 2015 A.D., 500 people died in a town in which there was 125670 population. Calculate
crude death rate of that town in that year.

Solution:

Given,
In a town in 2015 A.D.
Total deaths = 500

Total population = 125670
Crude death rate (CDR) = ?
Now,
Total deaths in a place in a year
CDR = × 1000
Mid year population of that place in a year
500
= × 1000
125670
= 3.97

∴ CDR of that town in 2015 A.D. was calculated as 3.97 per 1000.
In the above example, CDR is calculated as 3.97 per 1000. It means that nearly 4 people
died among 1000 mid year population in a town in 2015 A.D.

b. Age Specific Death Rate (ASDR)
The total deaths of specific age group of people in 1000 mid year population of the same
age group of people in a place in a year is called as age specific death rate.

Mathematically,
Total deaths of people of specific age group
ASDR = × 1000
Mid year population of the same age group

It is also expressed per 1000.
GREEN Health, Population and Environment Education Book-10 21