Introduction: Behc¸et's syndrome (BS) is characterized by a heterogeneous vessel involvement, a fluctuating natural history and by the absence of biological markers correlated to disease activity that's why objective clinical scores are needed for the assessment of its activity. Many activity scores were proposed. The Behc¸et's Disease Clinical Activity Form (BDCAF) is the most recent and used one. Aim: do a cross-cultural adaptation of the BDCAF to the Tunisian dialect (Arabic language) and test its reliability among Tunisian patients. Patients and methods: Two Tunisian Internal Medicine physicians translated the BDCAF from English to Tunisian dialect. The two versions were then back translated. Translations and back translations were all reviewed by clinicians and English Teachers and finalized into one Tunisian BDCAF form called Tu-BDCAF. To test its reliability, the activity of BS was assessed in 40 BS Tunisian. Patients were questioned by two BS specialists the same day (Tu-BDCAF1 and Tu-BDCAF2) to test inter-observer reproducibility and twice by the same physician at 24 hours interval to assess the intra-observer reproducibility (Tu-BDCAFl and Tu-BDCAF3). K coefficient was used to test the concordance between qualitative variables and correlation between quantitative variables was evaluated used Pearson coefficient. Results: Patients were 23 males and 17 females with a mean age of 38 years. Results of Inter and intra-observers agreement concerning all clinical manifestations involved in the BDCAF score are listed in table I. Comments: there was a good correlation between global scores calculated by the two physicians the same day (Tu-BDCAF1-Tu-BDCAF2) (r = 0.94, p<0.0001) and also between the scores calculated by the same clinician at different times Tu-BD-CAF1-Tu-BDCAF3 (r =0.98, p<0. (Table presented).

Olfa H, Yacine M, Amira A, Amira H, Mahmoud B, Moncef R, et al. A Tunisian version of the Behc¸et's Disease Clinical Activity Form. Clinical and Experimental Rheumatology. 2010;28(4):S153.

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