Page 17 - Health, Population and Environment Education 10

Worked out example: 2
In a city in 2010 AD, there were 242732 females in child bearing period (15-49 years) at the
beginning of year and at the end of year, they were counted as 244986. They gave birth to
138475 children in the same year. Calculate the general fertility rate of females.

Solution:
Given,
In a city in 2010 AD,
Live births = 138475
Population of females of 15-49 years at the beginning of year = 242732
Population of females of 15-49 years at the end of year = 244986
General Fertility Rate (GFR) = ?
We know,
Mid year population of females of 15-49 years
Population at the beginning of year + Population at the end of year
=
2
242732 + 244986
=
2
= 243859
Now,
Total live births given by females of 15-49 years
GFR = × 1000
Mid year population of females of 15-49 years

138475
= × 1000
243859

= 567.84
∴ GFR of that city in 2010 AD was calculated as 567.84 per 1000.

In the above example, GFR is calculated as 567.84 per 1000. It means that nearly 568 live
births were given by 1000 women of child bearing period (15-49 years) in the year 2010
AD.

c. Age Specific Fertility Rate (ASFR)
Total live births given by 1000 women of a specific age group in child bearing period in a
place in a year is called as age specific fertility rate (ASFR).
Mathematically,
Total live births given by women of specific age group
ASFR = × 1000
Mid year population of women of the same age group

It is aso expressed per 1000.
GREEN Health, Population and Environment Education Book-10 17