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
Denominator in perinatal moality rate 
Select and explain. 
A. Total bihs, B. Total live bihs, C. Live bihs + Still bih, D. Total number of newborns
A: Total bihs
Answer: A: Total bihs 
Explanation: Ans: A. Total bihs* PERINATAL MOALITY RATE is the sum of the number of resident fetal deaths of 28 or more weeks gestation plus the number of resident newborns dying under 7 days of age in a specified geographic area (country, state, county, etc.) divided by TOTAL BIHS includes the sum of the number of resident live bihs plus the number of resident fetal deaths of 28 or more weeks gestation for the same geographic area (for a specified time period, usually a calendar year) and multiplied by 1,000.