Table 2.

Comparisons between circumferential 2D strain and β stiffness index in common carotid arteries in patients with AS and age- and sex-matched controls.

AS Patients, n = 46Controls, n = 46P
Sex
      Men31 (64.7)31 (64.7)
      Women15 (32.6)15 (32.6)
Age, yrs50.4 ± 8.749.8 ± 9.20.75
Systolic BP, mmHga127 ± 13127 ± 120.96
Diastolic BP, mmHga75 ± 974 ± 80.53
Circumferential 2D strain, %
      Right7.8 ± 2.810.1 ± 2.1< 0.001
      Left8.0 ± 3.110.5 ± 2.6< 0.001
      Mean7.9 ± 2.610.3 ± 1.9< 0.001
β stiffness index, mmHg/mm
      Rightb13.0 ± 1.712.4 ± 1.40.05
      Leftc13.3 ± 2.112.3 ± 1.80.02
      Meand13.1 ± 1.712.3 ± 1.30.02

  • Values are mean ± SD or n (%).

  • ↵a Controls, n = 45.

  • ↵b AS patients, n = 44; controls, n = 45.

  • ↵c AS patients, n = 45; controls, n = 44.

  • ↵d AS patients, n = 43; controls, n = 44. 2D: 2-dimensional; AS: ankylosing spondylitis; BP: blood pressure; AS: ankylosing spondylitis.