This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
General fertility rate is a better measure of fertility than the crude birth rate because the denominator includes - 
Select and explain. 
A. 15 - 45 years of age female, B. Midyear population, C. Total woman population, D. Married woman population
A: 15 - 45 years of age female
Answer: A: 15 - 45 years of age female 
Explanation: Birth rate  → Simplest indicator of fertility
No. of live births per 1000 estimated mid year population 
Birth rate = (No. of live birth during the year / estimated mid yr. Population) x 1000
General fertility rate  → (No. of live births in an area during the year / mid year female population (15 to 45 yrs) in the same area) x 1000.
General fertility rate is a better measure of fertility than the crude birth rate because the denominator is restricted to the no. of women in the child bearing age, rather than the whole population.