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DUDIT

DUDIT: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.

ℹ Reference calculation based on the published method. It does not replace a clinical examination or a doctor's decision.

DUDIT

1. How often do you use drugs other than alcohol? (0 = never, 1 = monthly or less, 2 = 2–4 times a month, 3 = 2–3 times a week, 4 = 4+ times a week)
2. More than one drug on the same occasion (scale as in question 1)
3. Times you take drugs on a typical day of use (0 = 0, 1 = 1–2, 2 = 3–4, 3 = 5–6, 4 = 7+)
4. Heavily influenced by drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
5. Craving too strong to resist (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
6. Unable to stop once started (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
7. Neglected something you should have done because of drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
8. Needed a drug the morning after heavy use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
9. Guilt about your drug use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily)
10. You or someone else hurt because of your drug use (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year)
11. Relative, friend or doctor worried and told you to stop (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year)
Female (1 = yes)
DUDIT score
8
Screening does not replace a professional consultationDUDIT: calculated with the published clinical method, with result interpretation. A reference tool that does not replace a doctor's advice.
Drug screening
Drug-related problems likely
Positive cut-off
6

More about: DUDIT

What it calculates

The “DUDIT” calculator computes DUDIT score from 12 parameters: 1. how often do you use drugs other than alcohol? (0 = never, 1 = monthly or less, 2 = 2–4 times a month, 3 = 2–3 times a week, 4 = 4+ times a week), 2. more than one drug on the same occasion (scale as in question 1), 3. times you take drugs on a typical day of use (0 = 0, 1 = 1–2, 2 = 3–4, 3 = 5–6, 4 = 7+), 4. heavily influenced by drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 5. craving too strong to resist (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 6. unable to stop once started (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 7. neglected something you should have done because of drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 8. needed a drug the morning after heavy use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 9. guilt about your drug use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 10. you or someone else hurt because of your drug use (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year), 11. relative, friend or doctor worried and told you to stop (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year), female (1 = yes).

Used by professionals and patients to assess health metrics, dosages, and risks.

Example calculation

With parameters 1. How often do you use drugs other than alcohol? (0 = never, 1 = monthly or less, 2 = 2–4 times a month, 3 = 2–3 times a week, 4 = 4+ times a week) = 2, 2. More than one drug on the same occasion (scale as in question 1) = 1, 3. Times you take drugs on a typical day of use (0 = 0, 1 = 1–2, 2 = 3–4, 3 = 5–6, 4 = 7+) = 1, 4. Heavily influenced by drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 1, 5. Craving too strong to resist (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 1, 6. Unable to stop once started (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 0, 7. Neglected something you should have done because of drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 0, 8. Needed a drug the morning after heavy use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 0, 9. Guilt about your drug use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily) = 0, 10. You or someone else hurt because of your drug use (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year) = 0, 11. Relative, friend or doctor worried and told you to stop (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year) = 1, Female (1 = yes) = 0 the result is 8 (Screening does not replace a professional consultation).

How to use

  1. Enter 1. how often do you use drugs other than alcohol? (0 = never, 1 = monthly or less, 2 = 2–4 times a month, 3 = 2–3 times a week, 4 = 4+ times a week), 2. more than one drug on the same occasion (scale as in question 1), 3. times you take drugs on a typical day of use (0 = 0, 1 = 1–2, 2 = 3–4, 3 = 5–6, 4 = 7+), 4. heavily influenced by drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 5. craving too strong to resist (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 6. unable to stop once started (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 7. neglected something you should have done because of drugs (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 8. needed a drug the morning after heavy use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 9. guilt about your drug use (0 = never, 1 = less than monthly, 2 = monthly, 3 = weekly, 4 = daily), 10. you or someone else hurt because of your drug use (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year), 11. relative, friend or doctor worried and told you to stop (0 = no, 1 = yes, but not in the last year, 2 = yes, in the last year) and female (1 = yes) — each field above is adjustable with a slider.
  2. DUDIT score is calculated automatically as you type.
  3. Check the worked example below to see the formula applied to real numbers.
  4. Copy the result or bookmark this calculator.

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FAQ

How is BMI calculated?
BMI = weight (kg) / height (m)². Example: 70 kg / (1.75 m)² = 22.9. The WHO normal range is 18.5–24.9; below that is underweight, 25–29.9 is overweight, and 30+ is obese.
Is BMI accurate for everyone?
No. BMI does not distinguish muscle from fat, so athletes may show a high BMI with low body fat. It is also less reliable for teenagers, pregnant people, older adults, and very tall or short individuals.
What are the BMI categories?
Underweight: below 18.5. Normal: 18.5–24.9. Overweight: 25–29.9. Obese class I: 30–34.9; class II: 35–39.9; class III: 40+.
What is a better measure than BMI?
Body fat percentage, waist-to-height ratio (aim for under 0.5), and waist circumference give a clearer picture of health than BMI alone.

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