<prompt> Kanawati index is used for -Air populationPEMObesity definitionInfectivity  <response>: Ans. is b i.e., PEMo Kanawati index is used to classify protein energy malnutrition PEM.Kanawati index Mid arm circumferenceHead circumferenceo 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. 