True about crude bih rate is all except
Bih rate = Number of live bihs during the year X 1000/ estimated mid year population Unsatisfactory measure of feility because the total population is not exposed to child bearing Bih rate is not a ratio. In ratio, the numerator is not a component of denominator Reference : Park&;s textbook of preventive and social medicine, 23rd edition, pg no: 55,488
Ratio
Feility indicator
Stillborn excluded
Not affected by age distribution of the population
Demography and family planning