PUBLIC LIBRARY / SCORE

Fagerström test

Assesses physical nicotine dependence in cigarette smokers to plan treatment and need for pharmacotherapy.

Calculate with transparency

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

Preparing the form…

Check the method
Enter the data
Check the result

Method · Limits of application

FTND/Heatherton 1991:6 items, total 0–10; not original Tolerance Questionnaire; Brazil smoking protocol 2020

The FTND edition revises FTQ and was studied in cigarette smokers. Do not presume equivalent scoring for every nicotine product or electronic device. The cited Brazilian protocol and full rubrics still require primary-source checking in this review.

Required fields: 0/6 completed

Complete all required fields. Optional fields are marked.

How soon after waking do you smoke your first cigarette? required

Do you find it difficult not to smoke where smoking is prohibited? required

Which cigarette of the day is most satisfying (or would be hardest to give up)? required

How many cigarettes do you smoke per day? required

Do you smoke more frequently in the first hours after waking than during the rest of the day? required

Do you smoke even when you are so ill that you spend most of the time in bed? required

This form does not save data in your browser.

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

How soon after waking do you smoke your first cigarette?
Do you find it difficult not to smoke where smoking is prohibited?
Which cigarette of the day is most satisfying (or would be hardest to give up)?
How many cigarettes do you smoke per day?
Do you smoke more frequently in the first hours after waking than during the rest of the day?
Do you smoke even when you are so ill that you spend most of the time in bed?

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.

Six questions. Time to first cigarette: ≤ 5 min 3, 6–30 min 2, 31–60 min 1, > 60 min 0. Cigarettes daily: ≤ 10 0, 11–20 1, 21–30 2, ≥ 31 3. Other four questions score 1 for yes (or “the first in the morning”). Total 0–10.

References

Identifier: teste-de-fagerstrom

Original clinical content: Brazilian Portuguese.

Method version

FTND/Heatherton 1991:6 items, total 0–10; not original Tolerance Questionnaire; Brazil smoking protocol 2020

teste-de-fagerstrom@native-2026-10-03+5f7b36571494

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

How soon after waking do you smoke your first cigarette?: More than 60 minutes
Do you find it difficult not to smoke where smoking is prohibited?: No
Which cigarette of the day is most satisfying (or would be hardest to give up)?: Any other
How many cigarettes do you smoke per day?: 10 or fewer
Do you smoke more frequently in the first hours after waking than during the rest of the day?: No
Do you smoke even when you are so ill that you spend most of the time in bed?: No

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

Expected result

{
  "score": 0,
  "level": "low",
  "verdict": "muito baixa"
}

Actual result

{
  "score": 0
}

Case 2

reference-002

Inputs

How soon after waking do you smoke your first cigarette?: From 31 to 60 minutes
Do you find it difficult not to smoke where smoking is prohibited?: Yes
Which cigarette of the day is most satisfying (or would be hardest to give up)?: The first in the morning
How many cigarettes do you smoke per day?: 11 to 20
Do you smoke more frequently in the first hours after waking than during the rest of the day?: No
Do you smoke even when you are so ill that you spend most of the time in bed?: No

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

Expected result

{
  "score": 4,
  "level": "low",
  "verdict": "baixa"
}

Actual result

{
  "score": 4
}

Case 3

reference-003

Inputs

How soon after waking do you smoke your first cigarette?: From 6 to 30 minutes
Do you find it difficult not to smoke where smoking is prohibited?: No
Which cigarette of the day is most satisfying (or would be hardest to give up)?: Any other
How many cigarettes do you smoke per day?: 11 to 20
Do you smoke more frequently in the first hours after waking than during the rest of the day?: Yes
Do you smoke even when you are so ill that you spend most of the time in bed?: Yes

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

Expected result

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

Actual result

{
  "score": 5
}

Case 4

reference-004

Inputs

How soon after waking do you smoke your first cigarette?: Within the first 5 minutes
Do you find it difficult not to smoke where smoking is prohibited?: No
Which cigarette of the day is most satisfying (or would be hardest to give up)?: The first in the morning
How many cigarettes do you smoke per day?: 21 to 30
Do you smoke more frequently in the first hours after waking than during the rest of the day?: Yes
Do you smoke even when you are so ill that you spend most of the time in bed?: Yes

{
  "q1": "3",
  "q2": "0",
  "q3": "1",
  "q4": "2",
  "q5": "1",
  "q6": "1"
}

Expected result

{
  "score": 8,
  "level": "high",
  "verdict": "muito elevada"
}

Actual result

{
  "score": 8
}

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.