Page 22 - Health, Population and Environment Education 10

In order to calculate ASDR, total number of people is divided into different age groups
with an interval of 5 years. (i.e.0 – 4) (10 – 14) (15 – 19), (20 – 24) etc. It is more accurate
and efficient than CDR. It can be used to calculate mortality rate for both male and female
separately.

Worked out example: 6
In a district in 2011 A.D., there were 544320 children of ( 0-4) years and 2952 of them died
in the same year. Calculate Age Specific Death Rate (ASDR) of children in that district.

Solution:

Given,
In a district in 2011 A.D.,
Death of children of (0 – 4) years = 2952
Total population of children of ( 0 – 4) years = 544320

Age Specific Death Rate (ASDR) = ?
Now,
We know,
Total deaths of children of specific age group (0 – 4) years
ASDR = × 1000
Mid year population of children of the same age group (0-4) years
2952
= × 1000
544320

= 5. 42
∴ ASDR of children of (0 – 4) years of that district in 2011 A.D. was 5. 42 per 1000.

In the above example, ASDR is calculated as 5. 42 per 1000. It means that nearly 5 deaths
of specific age group of population (0-4) years has taken place among 1000 mid-year
population of the same age group of population in a district in 2011 A.D.

c. Infant Mortality Rate (IMR)
Total deaths of infants in 1000 live births in a place in a year
is called as infant mortality rate.
Mathematically,
Total deaths of infants in a place in a year
IMR = × 1000
Total live births in a place in a year Fig: 2
It is also expressed per 1000.

Infant mortality rate indicates the socio-economic and health situation in the country. If
IMR is very high, it denotes poor socio-economic and health condition where as low IMR

22 GREEN Health, Population and Environment Education Book-10