<prompt> For calculating GFR General fertility rate the denominator used isEstimated mid-year populationAll persons between 15-49 yearsWomen between 15-49 yearsAll live births  <response>: Ans. c Women between 15-49 years Ref. Park Textbook of PSM 22ndpg.450GFR no. of live births in an area during a yearmid year female population age 15-44 or 49 in the same area in same year X1000.Easy to remember: Estimated mid-year population - for - Crude Birth Rate, Crude Marriage Rate All live births - for - MMR, IMR, PNMR, Neonatal MR, under 5 MR,All MCH indicators live birth is in denominator except Stillbirth Rate total live as well as stillbirths are included and Child death rate1 to 4 year mortality rate total no. of children 1 to 4 years.Fertility indicators Crude Birth RateCBR - mid year population as denominator General Fertility Rate GFR - female in reproductive age group as denominator General Marital Fertility Rate GFR - married female in reproductive age group as denominator Age Specific Fertility Rate ASFR - female in specific age group as denominator. Throw light on fertility pattern. Important indicator of family planning achievement Age Specific Marital Fertility Rate ASMFR - married female in specific age group as denominator Total Fertility Rate TFR - summation of all Age Specific Fertility Rate ASFR. Denoted approximate magnitude of completed family size. Total Marital Fertility Rate TMFR - summation of all Age Specific Marital Fertility Rate ASMFR. Gross Reproduction Rate GRR - average no. of girls are taken into consideration. Mortality not assumed. Net Reproduction Rate NRR - average no. of girls born to newborn female are taken into consideration assuming mortality. NRR 1 equivalent to 2 child norm. NRR 1 means population is below replacement level. Child -women ratio - used where birth registration statistics either do not exist or are inadequate. Pregnancy Rate - all pregnancies are included. Married women are in denominator. Abortion Rate - all women are in denominator. Abortion Ratio - abortions live births Crude Marriage Rate - no. of marriages mid year population General Marriage Rate - no. of marriages unnwried persons in 1549 years. 