Addiction Severity Index (ASI)

McLellan AT; Luborsky L; Woody GE; O'Brien CP

Distributed by Mapi Research Trust


Distributed by Mapi Research Trust

Basic description

ASI Original version developed in 1980 (Composite scores);

Slightly modified (ASI-5, 5th edition) in 1992;

A shortened version of the baseline ASI-5, the ASI-Lite or ASI-L-VA was developed in 2007;

Major revision of the ASI (ASI-6) was performed in 2006 (using Recent Status Scores).


McLellan AT; Luborsky L; Woody GE; O'Brien CP

Public domain
To produce a problem severity profile of each patient through an analysis of six general areas
Therapeutic area
  • Mental Disorders
  • Chemically-Induced Disorders
Therapeutic indication
  • Substance-Related Disorders
  • Alcoholism
Alcohol and Drug abuse
Type of Clinical Outcome Assessment (COA)
  • Composite
PRO and ObsRO
Original language(s)
  • English for the USA
Bibliographic reference(s) of the original questionnaire
McLellan AT, Luborsky L, Woody GE, O'Brien CP. An improved diagnostic evaluation instrument for substance abuse patients. The Addiction Severity Index. J Nerv Ment Dis. 1980 Jan;168(1):26-33 (PubMed Abstract)

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Contact and conditions of use


McLellan AT; Luborsky L; Woody GE; O'Brien CP

Thomas McLellan

Treatment Research Institute
600 Public Ledger Building
150 S. Independence Mall West
PA 19106

Thomas McLellan Publications (PubMed)

Contact information

Mapi Research Trust
27 rue de la Villette
69003 Lyon
Phone: +33 (0)4 72 13 66 66

Conditions of use

This questionnaire is in the public domain.

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Examination copies can only be used for the limited purpose of examining the suitability of the Questionnaire for subsequent research and/or clinical use, and cannot be used in research or in clinical practice or distributed to others.
You are not authorized to modify, retype, translate, copy or otherwise duplicate the Questionnaire except with the further and prior written permission of Mapi Research Trust / the developers / copyright holders / distributors.

Addiction Severity Index – 5th Edition and Other Versions available on the Treatment Research Institute (TRI) website


Original language(s)

  • English for the USA


The list of available translations is subject to constant changes and may not be exhaustive. It is provided for information only. Some recently produced translations may not be included in the list below yet. Please do check the status of available translations with Mapi Research Trust / the developers / copyright holders / distributors.

Also, the listed translations may not have undergone a full linguistic validation process and may require further work to be suitable for use in a study.


Czech for Czech Republic
Danish for Denmark
French for France
Hungarian for Hungary
Italian for Italy
Lithuanian for Lithuania
Polish for Poland
Portuguese for Portugal
Spanish for Costa Rica
Swedish for Sweden

Conditions to translate

In case further linguistic validation steps need to be performed on the translations produced by Mapi and provided by Mapi Research Trust, User shall work exclusively with Mapi. Each such upgraded version will be made available to third parties exclusively by Mapi Research Trust under the same conditions as described above.

More information on translations

Bibliographic references of the translations:

Copies of the Danish, Lithuanian, Polish, Portuguese and Swedish versions: available on the Evaluation Instruments Bank (EIB) of the European Monitoring Centre for Drugs and Drug Addiction website.

French version:
Daeppen JB, Burnand B, Schnyder C, Bonjour M, Pécoud A, Yersin B. Validation of the Addiction Severity Index in French-speaking alcoholic patients. J Stud Alcohol. 1996 Nov;57(6):585-90.(Pubmed ABstract)

German version:
Scheurich A, Müller MJ, Wetzel H, Anghelescu I, Klawe C, Ruppe A, Lörch B, Himmerich H, Heidenreich M, Schmid G, Hautzinger M, Szegedi A. Reliability and validity of the German version of the European Addiction Severity Index (EuropASI). J Stud Alcohol. 2000 Nov;61(6):916-9 (Pubmed Abstract)

Hungarian version:
Gerevich J, Bácskai E, Kó J, Rózsa S. Reliability and validity of the Hungarian version of the European Addiction Severity Index. Psychopathology. 2005 Nov-Dec;38(6):301-9. Epub 2005 Oct 12 (Pubmed Abstract)

Japaneses version:
Senoo E, Ogai Y, Haraguchi A, Kondo A, Ishibashi Y, Umeno M, Kikumoto H, Hori  T, Komiyama T, Kato R, Aso K, Asukai N, Wada K, Saitoh S, Ikeda K. Reliability and validity of the Japanese version of the Addiction Severity Index  (ASI-J). Nihon Arukoru Yakubutsu Igakkai Zasshi. 2006 Aug;41(4):368-79 (Pubmed Abstract)

Spanish version for Costa Rica:
Sandí Esquivel LE, Avila Corrales K. Validity of the Addiction Severity Index (adapted version) in a Costa Rican population group. Bull Pan Am Health Organ. 1990;24(1):70-6 (Pubmed Abstract)

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