Table 3.
Association of plaque prevalence in the descending aorta with brain volume
TCBV | |||||||
---|---|---|---|---|---|---|---|
Model 1a | Model 2b | Model 3c | |||||
β (SE) | p-value | β (SE) | p-value | β (SE) | p-value | ||
Plaque present in the thoracic DAo | Overall (n=118) | −0.85 (0.25) | <0.001 | −0.77 (0.25) | 0.002 | −0.98 (0.39) | 0.012 |
Interaction with sex | 0.748 | 0.875 | 0.387 | ||||
Men (n=60) | −0.58 (0.36) | 0.105 | −0.39 (0.35) | 0.27 | −0.28 (0.53) | 0.601 | |
Women (n=58) | −1.04 (0.35) | 0.003 | −1.13 (0.35) | <0.001 | −1.69 (0.58) | 0.004 | |
Any plaque present (thoracic, abdominal, or both) in the DAo | Overall (n=722) | −0.22 (0.13) | 0.101 | −0.19 (0.13) | 0.15 | −0.15 (0.18) | 0.405 |
Interaction with sex | 0.008 | 0.029 | 0.670 | ||||
Men (n=332) | −0.44 (0.20) | 0.026 | −0.28 (0.19) | 0.15 | −0.09 (0.26) | 0.304 | |
Women (n=390) | 0.02 (0.18) | 0.913 | −0.04 (0.17) | 0.80 | 0.11 (0.25) | 0.664 |
β,beta value; DAo, descending aorta; SE, standard error; TCBV, total cerebral brain volume:total cranial volume ratio.
Model 1: Age and sex.
Model 2: Model 1, plus adjustment for education, body mass index, systolic blood pressure, smoking, diabetes, total cholesterol:high density lipoprotein ratio, triglycerides, antihypertensive use, lipid lowering therapy, prior cardiovascular disease, and homocysteine.
Model 3: Model 2, plus adjustment for carotid artery calcium score (CAC) and carotid intima-media thickness (IMT); 26/371 men and 23/447 women had plaque present in the thoracic DAo on cardiovascular MRI (CMR) and measures for CAC and carotid IMT; 165/371 men and 223/447 women had any plaque present in the DAo on CMR and measures for CAC and carotid IMT