Regarding crude bih rate all are true 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 Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 488
Unaffected by age distribution
Indicator of feility
Excludes the still bihs
Better measure of feility than general feility rate
Demography and family planning