Table 1: Demographic and clinical data of the 17 RA patients

F:M	15:2
Age mean ± SD (range), yrs	44.1 ± 10.7 (28-63)
Disease duration Mean ± SD (range), yrs	7.9 ± 5.8 (2.5-23)
BMI mean ± SD	27.3 ± 12.3
Smoking habit N(%)	3/17 (17.6)
Glucocorticoids N(%)	17/17 (100)
Methotrexate N(%)	12/17 (70.6)
Hydroxychloroquine N(%)	2/17 (11.8)
Leflunomide N(%)	1/17 (5.9)