This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Census, SRS, NFHS, DLHS, VRS, Subject name: Social & Preventive Medicine
At what point in time is the population assessed for calculation of Crude death rate? 
Select and explain. 
A. 1st Jan, B. 1st May, C. 1st July, D. 31st Dec
C: 1st July
Answer: C: 1st July 
Explanation: For calculation of crude death rate,mid-year population is assesed. Population count as on 1st July of an year is considered as Mid Year Population of that year. Crude bih rate (CBR): Annual number of live bihs per 1000 mid-year population Crude death rate (CDR): Annual number of deaths per 1000 mid-year population 1st july also celebrated as doctor's day Findings of SRS Bulletin: 1. Crude Bih Rate (CBR): 20.2 per 1000 mid-year population 2. Crude Death Rate (CDR): 6.3 per 1000 mid-year population