Table 1.

Comparison of the modified NRS and NRS 2002 scoring criteria.

NRS 2002	Modified NRS	Score in the present study
Normal nutritional status
Impaired nutritional status:		Normal nutritional status: Score 0
Mild: Weight loss >5% in 3 months or food intake below 50–75% of normal requirement in preceding week	Unchanged	Mild: Score 1
Moderate: Weight loss >5% in 2 months or BMI 18.5–20.5 plus impaired general condition or food intake 25–50% of normal requirement in preceding week		Moderate: Score 2
Severe: Weight loss >5% in 1 month (or 15% in 3 months) or BMI <18.5 plus impaired general condition or food intake 0–25% of normal requirement in preceding week		Severe: Score 3
Severity of disease:
Normal nutritional requirements		Normal nutritional requirements: Score 0
Mild: Hip fracture, chronic patients in particular with acute complications, cirrhosis, COPD, chronic hemodialysis, diabetes, oncology	Mild: Add mild and moderate COVID-19 patients	Mild: Score 1
Moderate: Major abdominal surgery, stroke, severe pneumonia, hematologic malignancy	Moderate: Add severe COVID-19 patients	Moderate: Score 2
Severe: Head injury, bone marrow transplantation, intensive care patients (APACHE II > 10)	Severe: Add critical COVID-19 patients	Severe: Score 3
Patients with age ≥ 70 years	Unchanged	Age < 70 years: score 0
		Age ≥ 70 years: score 1
Presence of nutritional risk	Total score ≥3

BMI, body mass index; COPD, chronic obstructive pulmonary disease.