This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Social & Preventive Medicine
Which of one of the following is NOT a utilization rate? 
Select and explain. 
A. Population bed ratio, B. Bed occupancy rate, C. Bed turnover ratio, D. Average length of stay
A: Population bed ratio
Answer: A: Population bed ratio 
Explanation: Propoion of infants who are "fully immunized" against the 6 EPI diseases. Propoion of pregnant women who receive antenatal care, or have their deliveries supervised by a trained bih attendant. Percentage of population using various methods of family planning. Bed - occupancy rate Average length of stay Bed turn-over ratio (i.e. discharges / average)