Table 3.
Criteria for the severity of malnutrition staging.
| Phenotypic Criteria | |||
|---|---|---|---|
| Weight Loss (%) | Low Body Mass Index (kg/m2) | Reduced Muscle Mass | |
| Stage 1 / Moderate Malnutrition (Requires 1 phenotypic criterion that meets this grade) |
5–10% within past 6 months Or 10–20% beyond 6 months |
<20 if <70 years, or <22 if >70 years |
Mild to moderate deficit |
| Stage 2 / Severe Malnutrition (Requires 1 phenotypic criterion that meets this grade) |
>10% within past 6 months Or >20% beyond 6 months |
<18.5 if <70 years, or <20 if >70 years |
Severe deficit |