Bath Ankylosing Spondylitis Disease Activity Index (BASDAI)

Calin A

Distributed by Mapi Research Trust


Distributed by Mapi Research Trust

Basic description

Developed in 1994

See also the BASFI and BASMI


Calin A

Public Domain
To define disease activity in patients with ankylosing spondylitis
Therapeutic area
  • Musculoskeletal Diseases
Therapeutic indication

Spondylitis, Ankylosing

Type of Clinical Outcome Assessment (COA)
  • pro PRO
Original language(s)
  • English for the UK
Bibliographic reference(s) of the original questionnaire

Garrett S, Jenkinson T, Kennedy LG, Whitelock H, Gaisford P, Calin A. A new approach to defining disease status in ankylosing spondylitis: the Bath Ankylosing Spondylitis Disease Activity Index. J Rheumatol. 1994 Dec;21(12):2286-91 (PubMed Abstract)

Contact and conditions of use


Calin A

Dr Andrei Calin, MD, FRCP
Consultant Rheumatologist
Phone: + 44 (0) 1225 421 760
E-mail: andrei.calin@cantab.net

Andrei Calin 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.

Distribution of Translations

Existing translations produced by Mapi can be obtained from Mapi Research Trust:

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Access fees

Disclaimer: Distribution fees are administrative fees requested by Mapi Research Trust to cover the time spent by our team to provide the translations. These are not royalty or copyright fees. Translations produced by Mapi have been developped in collaboration with Dr Andrei Calin. They are provided in good faith by Mapi Research Trust and are correct to the best of our knowledge. Mapi Research Trust may not be held liable for the content of the Questionnaire and its translations and makes no warranties or representations regarding the accuracy or completeness of the translations. Mapi Research Trust disclaims any and all warranties, whether expressed or implied, including (without limitation) any implied warranties of merchantability or fitness of the translations for a particular purpose. In no event shall Mapi Research Trust be liable for any indirect, special, incidental, or consequential damages arising out of any use of any translations obtained from Mapi Research Trust. It is the User’s responsibility to inspect and to check the material provided by Mapi Research Trust in order to satisfy him(her)self as to the suitability of the material to the particular purpose.


Commercial users

Cost per language

750 €

Funded academic research

Cost per language

100 €

Not funded academic users

Cost per language


* Excluding VAT
Commercial users: Industry, CRO, any for-profit companies
Funded Academic research: Projects receiving funding from commerce, government, EU or registered charity. Funded academic research– sponsored by industry fits the “commercial users” category.
Not funded academic users, individual medical practice: Projects are not explicitly funded, but funding comes from overall departmental funds or from the University or individual funds

Author Website(s)

Additional information on the BASDAI website


Original language(s)

  • English for the UK


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. This list is subject to constant changes, therefore please check the status of translations with Mapi Research Trust / the developers / copyright holders / distributors.


Afrikaans for South Africa*
Arabic for Algeria*
Arabic for Egypt*
Arabic for Israel*
Arabic for Kuwait*
Arabic for Qatar*
Arabic for Saudi Arabia*
Arabic for the United Arab Emirates*
Azerbaijani for Azerbaijan*
Bengali for India*
Bulgarian for Bulgaria*
Cantonese for Hong Kong*
Croatian for Croatia*
Czech for Czech Republic*
Danish for Denmark*
Dutch for Belgium (Flemish)*
Dutch for the Netherlands*
English for Australia*
English for Canada*
English for Hong Kong*
English for India*
English for New Zealand*
English for South Africa*
English for the USA*
Estonian for Estonia*
Finnish for Finland*
French for Algeria*
French for Belgium*
French for Canada*
French for France*
French for Switzerland*
German for Austria*
German for Germany*
German for Switzerland*
Greek for Greece*
Gujarati for India*
Hebrew for Israel*
Hindi for India*
Hungarian for Hungary*
Italian for Italy*
Italian for Switzerland*
Japanese for Japan*
Kannada for India*
Korean for Korea*
Latvian for Latvia*
Lithuanian for Lithuania*
Malay for Malaysia*
Malayalam for India*
Mandarin for China*
Mandarin for Taiwan*
Marathi for India*
Norwegian for Norway*
Polish for Poland*
Portuguese for Brazil*
Portuguese for Portugal*
Punjabi for India|#Punjabi for India*
Romanian for Romania
Russian for Belarus*
Russian for Estonia*
Russian for Israel*
Russian for Latvia*
Russian for Lithuania*
Russian for Russia*
Russian for Ukraine*
Serbian for Serbia*
Sesotho for South Africa*
Slovak for Slovakia*
Spanish for Argentina*
Spanish for Chile*
Spanish for Colombia*
Spanish for Mexico
Spanish for Spain*
Spanish for the USA*
Swahili for Kenya*
Swedish for Finland*
Swedish for Sweden*
Tamil for India*
Telugu for India*
Turkish for Turkey*
Ukrainian for Ukraine*
Urdu for India*
Xhosa for South Africa*
Zulu for South Africa*
* Performed by Mapi

BiblioPRO: you can find information about the Spanish version here - puede encontrar información sobre la versión española aqui

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 reference of the Croatian translation:

Grazio S1, Grubisić F, Nemcić T, Matijević V, Skala H. The reliability and validity of a Croatian version of the Bath Ankylosing Spondylitis Functional Index (BASFI) and Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) in patients with ankylosing spondylitis. Reumatizam. 2009;56(2):63-76

Bibliographic reference of the Dutch translation:

Van Tubergen A, Debats I, Ryser L, Londoño J, Burgos Vargas R, Cardiel M H, Landewé R, Stucki G, Van der Heijde D, V. Use of a numerical rating scale as an answer modality in ankylosing spondylitis specific questionnaires. Arthritis Care and Research, 2002;47(3): 242−248

Tubergen A V, Coenen J, Landewé R, Spoorenberg A, Chorus A, Boonen A, Linden S, Heijde D. Assessment of fatigue in patients with ankylosing spondylitis: A psychometric analysis. Arthritis Care and Research, 2002;47(1):8−16

Bibliographic reference of the French translation:

Claudepierre P, Sibilia J, Goupille P, Flipo RM, Wendling D, Eulry F, Clerc D, Berthelot JM, Vergne P, Roudot-Thoraval F, Larget-Piet B, Chevalier X.  Evaluation of a French version of the Bath Ankylosing Spondylitis Disease Activity Index in patients with spondyloarthropathy. J Rheumatol. 1997 Oct;24(10):1954-8

Bibliographic reference of the German translation:

Bönisch A, Ehlebracht König I. (The BASDAI−D−−an instrument to defining disease status in  ankylosing spondylitis and related diseases). Zeitschrift für Rheumatologie 2003;62 (3): 251−63

Bibliographic reference of the Italian translation:

Biasi D, Carletto A, Caramaschi P, Bambara L M. An update on the Bath Ankylosing Spondylitis Disease Activity and Functional Indices (BASDAI, BASFI): excellent Cronbach's alpha scores.The Journal of rheumatology,1996; 23 (2),407−8

Cauli A, Dessole G, Fiorillo M T, Vacca A, Mameli A, Bitti P, Passiu G, Sorrentino R, MathieuA. Increased level of HLA−B27 expression in ankylosing spondylitis patients compared with healthy HLA−B27−positive subjects: a possible further susceptibility factor for the development of disease. Rheumatology; 2002; 41(12): 1375−9

Bibliographic reference of the Spanish for Mexico translation:

Cardiel−M−H, Londoño−J−D, Gutiérrez−E, Pacheco−Tena−C, Vázquez−Mellado−J, Burgos−Vargas−R. Translation, cross−cultural adaptation, and validation of the Bath Ankylosing Spondylitis Functional Index (BASFI), the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and the Dougados Functional Index (DFI) in a Spanish speaking population with spondyloarthropathies. 2003 Jul−Aug, VOL: 21 (4), P: 451−8

Bibliographic reference of the Spanish translation:

Ariza−Ariza−Rafael, Hernández−Cruz−Blanca, Navarro−Sarabia−Federico. Physical function and health−related quality of life of Spanish patients with ankylosing spondylitis. Arthritis and rheumatism; 2003;49(4) 483−7

Bibliographic reference of the Swedish translation:

Waldner−A, Cronstedt−H, Stenström−C−H. The Swedish version of the Bath ankylosing spondylitis disease activity index. Reliability and validity. Scandinavian journal of rheumatology. Supplement  1999;111:10−6



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