<prompt> Regarding crude bih rate all are true exceptUnaffected by age distributionIndicator of feilityExcludes the still bihsBetter measure of feility than general feility rate  <response>: 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 