Anthropometric indicator | Process of deterioration | State if low* | Commonly interpreted as |
Height-for-age | Stunting | Stunted | Chronic malnutrition |
Weight-for-age | Growth faltering | Underweight | Mixed acute/chronic malnutrition |
Weight-for-height (BMI in older children) | Wasting | Wasted | Acute malnutrition† |
*Severe deficit=<−3z-scores (standard deviations) from WHO Growth standards median. Moderate deficit=−3 to <−2z-scores; −2 to +2=‘normal’.
†Bilateral oedema is also used to define oedematous severe acute malnutrition (kwashiorkor).
BMI, body mass index.