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NRS-2002

Identifies hospitalized adults at nutritional risk who benefit from nutritional therapy, combining nutritional status, disease severity and age.

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Check the population, units and version. The result shows the formula or classification; it does not make an automatic treatment decision.

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Method · Limits of application

NRS 2002/ESPEN Kondrup 2003: 2 domains 0–3, age≥70 +1, total 0–7

NRS-2002 is risk screening based on the combination of nutritional status and disease severity. Its development distinguished study groups more likely to benefit; a total does not guarantee an individual response or prescribe the route or dose of nutritional support. Definitions, eligibility and age must match the version.

Required fields: 0/3 completed

Complete all required fields. Optional fields are marked.

Impaired nutritional status required

Disease severity (increased requirements) required

Age ≥ 70 years required

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Conditions of use

Check the population, units, inclusion and exclusion criteria, and version in the original source. A result alone does not establish a diagnosis, discharge decision or prescription.

Documented parameters

Impaired nutritional status
Disease severity (increased requirements)
Age ≥ 70 years

3/3 reference cases checked. Numerical tests are not clinical validation.

Sources and documentation

Documented formula

Transcribed from the source or a recorded revision; this is not a clinical recommendation.

Score = impaired nutritional status (0 to 3) + disease severity (0 to 3) + 1 point if age ≥ 70 years. Total 0 to 7.

Score ≥ 3: nutritional risk.

References

Identifier: nrs-2002

Original clinical content: Brazilian Portuguese.

Method version

NRS 2002/ESPEN Kondrup 2003: 2 domains 0–3, age≥70 +1, total 0–7

nrs-2002@native-2026-10-03+6f4ef93ebbd8

Source for the active edition

The bibliographic edition identifies the source. By itself, it proves neither full conformity of the formula nor clinical approval.

Synthetic cases checked (3)

Synthetic cases for checking the implementation, with no patient data.

Case 1

reference-001

Inputs

Impaired nutritional status: Mild: weight loss > 5% in 3 months or intake of 50% to 75% of requirements in the last week
Disease severity (increased requirements): Mild: hip fracture, chronic disease with an acute complication (cirrhosis, COPD, hemodialysis, diabetes, cancer)
Age ≥ 70 years: No

{
  "estado": "1",
  "gravidade": "1",
  "idade": false
}

Expected result

{
  "score": 2,
  "level": "low"
}

Actual result

{
  "score": 2
}

Case 2

reference-002

Inputs

Impaired nutritional status: Mild: weight loss > 5% in 3 months or intake of 50% to 75% of requirements in the last week
Disease severity (increased requirements): Mild: hip fracture, chronic disease with an acute complication (cirrhosis, COPD, hemodialysis, diabetes, cancer)
Age ≥ 70 years: Yes

{
  "estado": "1",
  "gravidade": "1",
  "idade": true
}

Expected result

{
  "score": 3,
  "level": "high"
}

Actual result

{
  "score": 3
}

Case 3

reference-003

Inputs

Impaired nutritional status: Moderate: loss > 5% in 2 months, or BMI 18.5 to 20.5 with impaired general condition, or intake of 25% to 60%
Disease severity (increased requirements): Moderate: major abdominal surgery, stroke, severe pneumonia, hematologic malignancy
Age ≥ 70 years: Yes

{
  "estado": "2",
  "gravidade": "2",
  "idade": true
}

Expected result

{
  "score": 5,
  "level": "high"
}

Actual result

{
  "score": 5
}

Code and reproducibility

This tool’s code on GitHub

Download code and tests

Sources, version and reproduction instructions

The code tests are technical checks. Clinical approval and professional translation review are recorded separately.

Relationship with cancer research

Support for research — context required

Nutritional screening for hospitalized patients. Use in an oncology study requires an appropriate population and an explicit nutritional question.

Applications: Survival and quality of life