This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition and Health, Subject name: Social & Preventive Medicine
Kanawati index is used for- 
Select and explain. 
A. Socioeconomic status, B. Protein energy malnutrition, C. Food fortification, D. Non-communicable disease
B: Protein energy malnutrition
Answer: B: Protein energy malnutrition 
Explanation: Ans. is 'b' i.e., Protein energy malnutrition* Kanawati index is used to classify protein energy malnutrition (PEM).Kanawati index =Mid arm circumference--------------------Head circumference* Normal value is 0-331. Values between 0-310 - 0-280 indicate mild PEM, values between 0-279 - 0-250 indicate moderate PEM and values less than 0-250 indicate severe PEM.