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UAS7 (Urticaria Activity Score)

Measures chronic spontaneous urticaria activity by adding the daily wheal and itch scores recorded by the patient for 7 consecutive days.

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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

UAS7/Młynek 2008:7 days UAS 0–6, total 0–42; EAACI/GA²LEN/EuroGuiDerm/APAAACI 2022 thresholds

UAS monitors chronic urticaria activity through the number of wheals and pruritus recorded over days. It does not represent all manifestations, such as angioedema, or replace quality-of-life assessment. UAS7 and later categories must follow their own temporal definition and source.

Required fields: 0/14 completed

Complete all required fields. Optional fields are marked.

Day 1 · wheals (papules) in 24 h required

Day 1 · itching required

Day 2 · wheals (papules) in 24 h required

Day 2 · itching required

Day 3 · wheals (papules) in 24 h required

Day 3 · itching required

Day 4 · wheals (papules) in 24 h required

Day 4 · itching required

Day 5 · wheals (papules) in 24 h required

Day 5 · itching required

Day 6 · wheals (papules) in 24 h required

Day 6 · itching required

Day 7 · wheals (papules) in 24 h required

Day 7 · itching 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

Day 1 · wheals (papules) in 24 h
Day 1 · itching
Day 2 · wheals (papules) in 24 h
Day 2 · itching
Day 3 · wheals (papules) in 24 h
Day 3 · itching
Day 4 · wheals (papules) in 24 h
Day 4 · itching
Day 5 · wheals (papules) in 24 h
Day 5 · itching
Day 6 · wheals (papules) in 24 h
Day 6 · itching
Day 7 · wheals (papules) in 24 h
Day 7 · itching

4/4 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.

Each day (24 hours), the patient records:

Wheals: 0 = none; 1 = < 20; 2 = 20–50; 3 = > 50 (or large confluent areas).
Itch: 0 absent;1 mild (present, not bothersome);2 moderate (bothersome, not interfering with activity/sleep);3 severe (interferes with activity/sleep).

Daily UAS = 0–6. UAS7 = sum of 7 consecutive days (0–42).

References

Identifier: uas7

Original clinical content: Brazilian Portuguese.

Method version

UAS7/Młynek 2008:7 days UAS 0–6, total 0–42; EAACI/GA²LEN/EuroGuiDerm/APAAACI 2022 thresholds

uas7@native-2026-10-04+28bc9ad8d81f

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 (4)

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

Case 1

reference-001

Inputs

Day 1 · wheals (papules) in 24 h: None
Day 1 · itching: Absent
Day 2 · wheals (papules) in 24 h: None
Day 2 · itching: Absent
Day 3 · wheals (papules) in 24 h: None
Day 3 · itching: Absent
Day 4 · wheals (papules) in 24 h: None
Day 4 · itching: Absent
Day 5 · wheals (papules) in 24 h: None
Day 5 · itching: Absent
Day 6 · wheals (papules) in 24 h: None
Day 6 · itching: Absent
Day 7 · wheals (papules) in 24 h: None
Day 7 · itching: Absent

{
  "d1p": "0",
  "d1c": "0",
  "d2p": "0",
  "d2c": "0",
  "d3p": "0",
  "d3c": "0",
  "d4p": "0",
  "d4c": "0",
  "d5p": "0",
  "d5c": "0",
  "d6p": "0",
  "d6c": "0",
  "d7p": "0",
  "d7c": "0"
}

Expected result

{
  "score": 0,
  "level": "low",
  "verdict": "Sem urticária"
}

Actual result

{
  "score": 0
}

Case 2

reference-002

Inputs

Day 1 · wheals (papules) in 24 h: < 20
Day 1 · itching: Absent
Day 2 · wheals (papules) in 24 h: < 20
Day 2 · itching: Mild (present but not annoying or troublesome)
Day 3 · wheals (papules) in 24 h: None
Day 3 · itching: Absent
Day 4 · wheals (papules) in 24 h: < 20
Day 4 · itching: Mild (present but not annoying or troublesome)
Day 5 · wheals (papules) in 24 h: None
Day 5 · itching: Absent
Day 6 · wheals (papules) in 24 h: None
Day 6 · itching: Mild (present but not annoying or troublesome)
Day 7 · wheals (papules) in 24 h: None
Day 7 · itching: Absent

{
  "d1p": "1",
  "d1c": "0",
  "d2p": "1",
  "d2c": "1",
  "d3p": "0",
  "d3c": "0",
  "d4p": "1",
  "d4c": "1",
  "d5p": "0",
  "d5c": "0",
  "d6p": "0",
  "d6c": "1",
  "d7p": "0",
  "d7c": "0"
}

Expected result

{
  "score": 6,
  "level": "low",
  "verdict": "bem controlada"
}

Actual result

{
  "score": 6
}

Case 3

reference-003

Inputs

Day 1 · wheals (papules) in 24 h: 20 to 50
Day 1 · itching: Mild (present but not annoying or troublesome)
Day 2 · wheals (papules) in 24 h: 20 to 50
Day 2 · itching: Mild (present but not annoying or troublesome)
Day 3 · wheals (papules) in 24 h: 20 to 50
Day 3 · itching: Mild (present but not annoying or troublesome)
Day 4 · wheals (papules) in 24 h: 20 to 50
Day 4 · itching: Mild (present but not annoying or troublesome)
Day 5 · wheals (papules) in 24 h: 20 to 50
Day 5 · itching: Mild (present but not annoying or troublesome)
Day 6 · wheals (papules) in 24 h: 20 to 50
Day 6 · itching: Mild (present but not annoying or troublesome)
Day 7 · wheals (papules) in 24 h: 20 to 50
Day 7 · itching: Mild (present but not annoying or troublesome)

{
  "d1p": "2",
  "d1c": "1",
  "d2p": "2",
  "d2c": "1",
  "d3p": "2",
  "d3c": "1",
  "d4p": "2",
  "d4c": "1",
  "d5p": "2",
  "d5c": "1",
  "d6p": "2",
  "d6c": "1",
  "d7p": "2",
  "d7c": "1"
}

Expected result

{
  "score": 21,
  "level": "mid",
  "verdict": "moderada"
}

Actual result

{
  "score": 21
}

Case 4

reference-004

Inputs

Day 1 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 1 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 2 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 2 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 3 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 3 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 4 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 4 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 5 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 5 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 6 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 6 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)
Day 7 · wheals (papules) in 24 h: > 50 wheals in 24 h or large confluent areas of wheals
Day 7 · itching: Moderate (troublesome but does not interfere with normal daily activity or sleep)

{
  "d1p": "3",
  "d1c": "2",
  "d2p": "3",
  "d2c": "2",
  "d3p": "3",
  "d3c": "2",
  "d4p": "3",
  "d4c": "2",
  "d5p": "3",
  "d5c": "2",
  "d6p": "3",
  "d6c": "2",
  "d7p": "3",
  "d7c": "2"
}

Expected result

{
  "score": 35,
  "level": "high",
  "verdict": "grave"
}

Actual result

{
  "score": 35
}

Code and reproducibility

This tool’s code on GitHub

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Sources, version and reproduction instructions

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

Relationship with cancer research

General context — relationship to be defined

A resource for general clinical contexts. This edition does not assign a specific oncological relationship; selecting it for a study requires a justified question, population and purpose.