Clinical evaluation
A detailed medical history and physical examination was carried out for all participants. BD diagnosis was made based on the criteria from the International Study Group. Demographic and clinical data were also recorded (6). Disease activity was evaluated with the Turkish version of the Behcet Disease Current Activity Form (BDCAF) (7). The items included in the form are: headache, oral and genital ulcers, erythema, skin pustules, arthralgia and arthritis, and involvements in intestinal, ocular, nervous system, and also in major vessels. The BDCAF score was calculated by summing up each item score and the scale was between 0-12 points. Patients with vascular involvement were the ones who had active vasculitis lesions at the time of sample collection (basically deep vein thrombosis, aortic plaques, stenosis, occlusions, aneurysms ).