Bih rate is: (A) Live bih X 1000\/ mid yr. Population, (B) Bih X 1000\/ mid yr population, (C) Live bih X 10000\/ mid yr. Population, (D) Live bih X 10000\/Population of reproductive age group (15-45)
Answer is A. 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, pg no: 488