In defining General Feility Rate, the denominator is
General feility rate is the number of live bihs per 1000 women in the reproductive are group ( 15-44 or 49 years) in a given year GFR = Number of live bih in an area during the year X 1000 / mid year female population age group 15-44 (or 49) in the same area in same year Reference : Park&;s textbook of preventive and social medicine, 23rd edition, Page no: 488
Population between 15 to 49 years of age
Women between 15 to 49 years of age
Mid year population
Live bihs
Demography and family planning