Table 1 Baseline characteristics of the patients with ankylosing spondylitis (AS) and healthy control subjects
AS (n = 15)Controls (n = 12)
Age, years40 (10)40 (13)
Male, %7367
Disease duration, years10.8 (8.3)
Smoking, %4742
Systolic blood pressure, mmHg122 (8)123 (11)
Diastolic blood pressure, mmHg77 (5)77 (5)
Pulse pressure, mmHg44 (7)46 (9)
Body mass index26.9 (24.2–28.2)23.2 (22.2–24.9)
  • Data are mean (SD) or median (interquartile range); Student t test or Mann–Whitney U test were used for comparing continuous variables. The Fisher exact test was used for dichotomous variables. Pulse pressure  =  systolic blood pressure–diastolic blood pressure.