Intima-media thickness of common carotid (mm)     CTR IT PAPS P 1st tertile 0.347 ± 0.030 0.386 ± 0.064 0.406 ± 0.090 0.05 2nd tertile 0.384 ± 0.047 0.405 ± 0.055 0.468 ± 0.088 0 3rd tertile 0.496 ± 0.074 0.528 ± 0.085 0.581 ± 0.119 0.03   Intima-media thickness of carotid bifurcation (mm)   1st tertile 0.412 ± 0.078 0.479 ± 0.083 0.438 ± 0.081 0.15 2nd tertile 0.446 ± 0.065 0.504 ± 0.085 0.529 ± 0.094 0.02 3rd tertile 0.557 ± 0.113 0.564 ± 0.093 0.693 ± 0.171 0   Intima-media thickness of internal carotid (mm)   1st tertile 0.320 ± 0.056 0.368 ± 0.091 0.366 ± 0.086 0.22 2nd tertile 0.374 ± 0.083 0.375 ± 0.061 0.460 ± 0.076 0 3rd tertile 0.444 ± 0.086 0.480 ± 0.077 0.546 ± 0.112 0.01 Abbreviations: CTR: Healthy Controls; IT: Inherited Thrombophilia; PAPS: Primary Antiphospholipid Syndrome 1st tertile: 16 patients (10 M, 6 F), mean age 26 ± 4.4 years 2nd tertile: 16 patients (10 M, 6 F), mean age 36 ± 2.7 years 3rd tertile: 17 patients (11 M, 6 F), mean age 49 ± 8.5 years

Table 2: Intima-media thickness of carotid artery segments by age tertiles from Ames et al. [11]