Severe Acute Malnutrition is defined as
Severe acute malnutition in children of 6 months - 5 year is defined as 
a) Weight / Height < - 3SD
b) Mid - upper arm circumference < 11.5 cm
c) Presence of bipedal edema
Weight / Height < - 2SD
Mid - Upper arm circumference < 12.5 cm
Presence of bipedal edema
Weight / age < - 3SD