Gross reproduction rate is the number if daughters a female will produce when she goes through her lifetime taking the several factors into account but the only difference is that
net reproduction rate takes into consideration the fact that
‘some women will die’ before completing the child bearing age and years.
Why is NRR less than GRR?
Like the TFR, the GRR ignores life expectancy. It assumes that all women will survive at least until the end of their reproductive lives. …
NRR is always lower than GRR
, but in countries where mortality is very low, almost all the baby girls grow up to be potential mothers, and the NRR is practically the same as GRR.
What is GRR and NRR?
The gross reproduction rate is similar to the net reproduction rate (NRR), the average number of daughters a woman would have if she survived her lifetime subject to the age-specific fertility rate and mortality rate throughout that period. …
What is meant by net reproductive rate?
The average number of daughters a hypothetical cohort of women would have at the end of their reproductive period if they were subject during their whole lives to the fertility rates and the mortality rates of a given period. It is expressed as
number of daughters per woman
.
What is NRR in family planning?
Net Reproduction Rate
(NRR)
It is a demographic indicator. NRR is defined as ”the no. of daughters, a new born girl will bear during her lifetime, assuming fixed age specific fertility and mortality rates”. NRR of 1 is equivalent to attaining the two child norm.
How do you calculate net reproduction rate?
Net reproductive rate (r) is calculated as:
r = (births-deaths)/population size or to get in percentage terms, just multiply by 100
. the population is so much bigger, many more individuals are added.
What is the formula of GRR?
Gross Reproduction Rate (GRR) where is the proportion of all births which are female and is the ASFRs at the age group ‘a to a +5’ in the reproductive ages. To estimate GRR, the sex ratio at birth is assumed to be
1.05
as developing country like Bangladesh[8].
Which is greater NRR or GRR?
The net reproduction rate (NRR) refines the gross reproduction rate by taking into account the fact that not all women will survive until the end of their reproductive years. The
greater the mortality rate
, the greater the difference between the GRR and NRR.
How do you calculate NRR?
The NRR of a team is calculated by
dividing the total number of runs scored by the team in a tournament divided by the total number of balls faced
with the result then subtracted by the total number of runs conceded in the tournament divided by the total number of balls bowled.
How is fertility calculated?
The TFR is usually simply described as the average number of children per woman which makes it an intuitive measure of fertility. The TFR is calculated by
adding up all the age-specific fertility rates, multiplying this sum by five (the width of the age-group interval), and then dividing by 1,000
.
What is the reproduction rate for humans?
The most commonly used metric is the Total Fertility Rate (TFR) – or often simply ‘fertility rate’ – which measures the average number of children per woman. The global average fertility rate is
just below 2.5 children per woman
today.
What is meant by reproduction rate?
Definition. The reproduction rate
measures the conditions under which generations are replaced
. This calculation can be made taking account of mortality (net reproduction rate) or without mortality (gross reproduction rate).
Why is net reproductive rate important?
A net reproductive rate of 1.0 indicates that
a population is neither increasing nor decreasing but replacing its numbers exactly
. This rate indicates population stability. Any number below 1.0 indicates a decrease in population, while any number above indicates an increase.
What is the eligible couple?
An ‘Eligible Couple’ refers to
a currently married couple wherein the age of the wife is in the age group of 15 to 44 years (Child bearing age)
.
What is the couple protection rate?
Experts on population have determined that India needs to achieve a couple protection rate (CPR) of
60% by the year 2000
to reduce the population growth rate and help stabilize the population.
What is couple protection?
CYP is
the estimated protection provided by contraceptive methods during a one-year period
, based upon the volume of all contraceptives sold or distributed free of charge to clients during that period.
