Table 2. Vascular parameters of ankylosing spondylitis patients and control subjects.

	AS patients (n=71)			Controls (n=30)
	Mean±SD	Median	Min-Max	Mean±SD	Median	Min-Max	p
Systolic blood pressure (mmHg)		128	108-135		122	105-127	0.5
Diastolic blood pressure (mmHg)		82	72-84		79	72-83	0.8
Pulse wave velocity (m/s)		8.82	7.0-10.0		6.6	6.4-7.1	0.04*
Carotid intima media thickness (mm)	0.6±0.1			0.6±0.2			0.03*
Augmentation index (%)		26.3	20.9-31.2		18.9	15.8-21.6	0.04*
Augmentation index 75 (%)		25.2	18.9-30.2		18.2	14.8-20.2	0.03*
AS: Ankylosing spondylitis; SD: Standard deviation; Min: Minimum; Max: Maximum.