Answer the 11 official Drug Use Disorders Identification Test questions (Berman, Bergman, Palmstierna & Schlyter, Karolinska Institutet) and get your 0–44 score with the manual’s cutoff interpretation — instantly and privately.
Questions 1–9 are scored 0–4 each; questions 10–11 are scored 0, 2, or 4 each. Add all eleven answers for the total.
Which drugs? In the DUDIT, “drugs” means drugs other than alcohol — e.g. cannabis, amphetamines, cocaine, opioids, hallucinogens, sedatives/tranquilizers, inhalants. Alcohol is screened separately with the AUDIT alcohol test.
| Group | Cutoff | Manual’s interpretation |
|---|---|---|
| Men | 6+ | Probably has drug-related problems |
| Women | 2+ | Probably has drug-related problems |
| Everyone | 25+ | Highly probable heavy dependence |
Source: DUDIT Manual v1.0 (Karolinska Institutet, 2003), Evaluation section. The manual calls the sex-specific cutoffs “highly preliminary” guidelines (placed two standard deviations above the Swedish general-population mean). The ≥25 dependence cutoff comes from a high-prevalence validation sample (sensitivity 90% for DSM-IV and ICD-10; specificity 78% / 88%). Some later studies report >24, which is the same threshold expressed differently. If you did not specify a sex above, this tool applies the more sensitive cutoff of 2.
A person answers the 11 DUDIT questions as follows: Q1 “2–4 times a month” (2), Q2 “Once a month or less” (1), Q3 “1–2” (1), Q4 “Less than once a month” (1), Q5 “Never” (0), Q6 “Never” (0), Q7 “Less than once a month” (1), Q8 “Never” (0), Q9 “Every month” (2), Q10 “No” (0), Q11 “Yes, but not in the past year” (2).
Every number above is computed by the same scoring engine that powers the interactive test — verified against hand calculation and frozen test vectors.
The DUDIT was developed as a parallel instrument to the WHO’s AUDIT — same 11-vs-10 question philosophy, same style of scoring — but for a different substance:
A DUDIT score says nothing about alcohol, and an AUDIT score says nothing about drugs. The DUDIT manual itself notes that many people who use drugs also use alcohol, and recommends assessing both. The two tools are complements, not duplicates.
The DUDIT (Drug Use Disorders Identification Test) is an 11-question screening instrument developed by Anne H. Berman and colleagues at Karolinska Institutet (manual, 2003) to identify drug-related problems. It was designed as a parallel instrument to the World Health Organization’s AUDIT — but for drugs other than alcohol. Like every screen on this site, it flags patterns worth discussing with a professional; it is not a diagnosis.
Each question targets one aspect of drug use (manual Table 1): Q1 frequency of use; Q2 using more than one type of drug on the same occasion; Q3 amount taken on a typical day; Q4 being heavily influenced by drugs; Q5 craving; Q6 loss of control; Q7 neglecting duties because of drugs; Q8 morning (“eye-opener”) use; Q9 guilt; Q10 harm to yourself or others; Q11 concern expressed by other people.
Questions 1–9 score 0–4 points each; questions 10 and 11 score 0, 2, or 4 points each. Add all eleven answers for a total of 0–44. Example: answers of 2,1,1,1,0,0,1,0,2,0,2 give 2+1+1+1+0+0+1+0+2+0+2 = 10 out of 44 — at or above the screening cutoff for both men (6+) and women (2+), but below the 25+ dependence range.
In the original manual, a score of 6 or more in men and 2 or more in women suggests the person probably has drug-related problems (harmful use or dependence). The authors stress these are preliminary guidelines, placed two standard deviations above the average score in a Swedish general-population sample. This tool applies the 6+ cutoff for men, 2+ for women, and the more sensitive 2+ if you prefer not to say.
A score of 25 or more (for anyone) meant, in the manual’s high-prevalence validation sample, that heavy dependence on one or more drugs was highly probable — the cutoff identified dependence with 90% sensitivity under both DSM-IV and ICD-10 criteria. It is a strong signal to seek a professional assessment promptly. It is still screening information, not a diagnosis.
The AUDIT (WHO) screens alcohol use; the DUDIT (Karolinska Institutet) screens drug use excluding alcohol. They were developed as parallel instruments with parallel scoring logic, but they are not interchangeable — a DUDIT score says nothing about alcohol and an AUDIT score says nothing about drugs. If alcohol is also a concern, take our AUDIT alcohol test as well.
No — deliberately. The DUDIT covers drugs other than alcohol; alcohol problems are assessed with the AUDIT. The manual notes that many people who use drugs also use alcohol, and recommends assessing both rather than assuming one screen covers everything.
The cutoffs were set from population data: each was placed two standard deviations above the mean DUDIT score for that sex in a Swedish general-population sample (a T-score of 70). Average scores differed between men and women in that sample, so the cutoffs differ too. The manual calls these recommendations highly preliminary.
No. The DUDIT is a screening instrument — it identifies patterns that deserve professional attention. A low score does not guarantee there is no problem, and a high score does not confirm dependence. Only a qualified health professional, with a full assessment, can make a diagnosis.
First: this is screening information, not a verdict about you, and there is nothing shameful about a high score — the test exists precisely to help people notice patterns early. Consider talking with a doctor, counselor, or addiction specialist, and bringing your item-by-item answers can make that conversation more useful. If drug use ever feels unsafe or out of control, seek professional help promptly.
It was developed and tested in Sweden on a general-population sample (n=1,500) and a high-prevalence sample of prison inmates and detox patients (n=154), with reliability (Cronbach’s alpha) of 0.80 in the general-population study. The 25+ dependence cutoff showed 90% sensitivity for DSM-IV and ICD-10 dependence. Later reviews found satisfactory reliability and validity across settings. No screen is perfect — treat the result as a starting point for a professional conversation.
Yes. This calculator is 100% client-side: your answers are processed only in your browser and are never sent anywhere, stored, or tracked. There is no account and no server involved — resetting the page erases everything.
Item wording follows the English DUDIT instrument (public domain per NCETA/Flinders).
Scoring rule and cutoffs spot-checked against the primary manual before the test vectors were frozen
(see SOURCES.md in this tool’s folder).
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