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GAD-7 scale

Screens generalized anxiety disorder and measures anxiety symptoms over the last 2 weeks. Does not diagnose.

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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

GAD-7/Spitzer 2006: 7 items 0–3, total 0–21; cutoffs 5/10/15; Brazilian Portuguese Moreno 2016

Screening and measurement of generalized anxiety symptom severity in adults. A probable result requires diagnostic assessment. Primary-care studies and the Brazilian community sample do not automatically validate new populations, the local implementation or additional translations.

Required fields: 0/7 completed

Complete all required fields. Optional fields are marked.

Over the last 2 weeks, how often have you been bothered by the following problems? 1. Feeling nervous, anxious or very tense required

2. Not being able to stop or control worrying required

3. Worrying a lot about different things required

4. Difficulty relaxing required

5. Being so restless that it is difficult to sit still required

6. Becoming easily annoyed or irritable required

7. Feeling afraid as if something awful might happen 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

Over the last 2 weeks, how often have you been bothered by the following problems? 1. Feeling nervous, anxious or very tense
2. Not being able to stop or control worrying
3. Worrying a lot about different things
4. Difficulty relaxing
5. Being so restless that it is difficult to sit still
6. Becoming easily annoyed or irritable
7. Feeling afraid as if something awful might happen

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.

Each item scores 0 (not at all) to 3 (nearly every day). Total 0 to 21. Severity cutoffs: 5, 10, 15. For generalized anxiety screening, ≥10 showed 89% sensitivity and 82% specificity in the original study.

References

Identifier: gad-7

Original clinical content: Brazilian Portuguese.

Method version

GAD-7/Spitzer 2006: 7 items 0–3, total 0–21; cutoffs 5/10/15; Brazilian Portuguese Moreno 2016

gad-7@native-2026-10-03+fa929f2dd0a1

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

Over the last 2 weeks, how often have you been bothered by the following problems?1. Feeling nervous, anxious or very tense: Several days
2. Not being able to stop or control worrying: Never
3. Worrying a lot about different things: Several days
4. Difficulty relaxing: Several days
5. Being so restless that it is difficult to sit still: Never
6. Becoming easily annoyed or irritable: Never
7. Feeling afraid as if something awful might happen: Never

{
  "q1": "1",
  "q2": "0",
  "q3": "1",
  "q4": "1",
  "q5": "0",
  "q6": "0",
  "q7": "0"
}

Expected result

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

Actual result

{
  "score": 3
}

Case 2

reference-002

Inputs

Over the last 2 weeks, how often have you been bothered by the following problems?1. Feeling nervous, anxious or very tense: More than half the days
2. Not being able to stop or control worrying: More than half the days
3. Worrying a lot about different things: More than half the days
4. Difficulty relaxing: More than half the days
5. Being so restless that it is difficult to sit still: Never
6. Becoming easily annoyed or irritable: Several days
7. Feeling afraid as if something awful might happen: Several days

{
  "q1": "2",
  "q2": "2",
  "q3": "2",
  "q4": "2",
  "q5": "0",
  "q6": "1",
  "q7": "1"
}

Expected result

{
  "score": 10,
  "level": "mid",
  "verdict": "moderada"
}

Actual result

{
  "score": 10
}

Case 3

reference-003

Inputs

Over the last 2 weeks, how often have you been bothered by the following problems?1. Feeling nervous, anxious or very tense: Nearly every day
2. Not being able to stop or control worrying: Nearly every day
3. Worrying a lot about different things: Nearly every day
4. Difficulty relaxing: Nearly every day
5. Being so restless that it is difficult to sit still: Nearly every day
6. Becoming easily annoyed or irritable: Nearly every day
7. Feeling afraid as if something awful might happen: Nearly every day

{
  "q1": "3",
  "q2": "3",
  "q3": "3",
  "q4": "3",
  "q5": "3",
  "q6": "3",
  "q7": "3"
}

Expected result

{
  "score": 21,
  "level": "high",
  "verdict": "grave"
}

Actual result

{
  "score": 21
}

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

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.