Table 3. Prevalence Ratios (95% CI) For Presence of TAC with Increasing Burden of Mean Maximum Common Intimal Medial Thickness.

Mean Maximum Common Carotid Artery	Per One SD (0.19) Increase	1^st Quartile (≤0.735)	2^nd Quartile (0.736-0.845)	3^rd Quartile (0.846-0.975)	4^th Quartile (>0.975)
MODEL 1
Total	1.19 (1.16-1.22)	1 (ref)	1.08 (0.85-1.37)	1.37 (1.10-1.70)	2.22 (1.80-2.75)
Caucasians	1.21 (1.17-1.26)	1 (ref)	0.97 (0.68-1.39)	1.30 (0.94-1.79)	2.23 (1.60-3.08)
Chinese	1.29 (1.18-1.41)	1 (ref)	1.03 (0.61-1.77)	1.42 (1.70-5.12)	2.98 (1.70-5.16)
African Americans	1.15 (1.10-1.20)	1 (ref)	1.07 (0.61-1.91)	1.35 (0.79-2.30)	2.03 (1.21-3.43)
Hispanics	1.19 (1.12-1.26)	1 (ref)	1.23 (0.77-2.00)	1.33 (0.82-2.15)	1.94 (1.20-3.15)
MODEL 2
Total	1.16 (1.13-1.19)	1 (ref)	1.02 (0.79-1.32)	1.19 (0.93-1.52)	1.76 (1.37-2.26)
Caucasians	1.17 (1.12-1.22)	1 (ref)	1.07 (0.69-1.66)	1.23 (0.83-1.83)	1.83 (1.21-2.77)
Chinese	1.28 (1.17-1.40)	1 (ref)	0.77 (0.43-1.38)	0.99 (0.54-1.83)	2.20 (1.15-4.20)
African Americans	1.12 (1.06-1.17)	1 (ref)	0.89 (0.45-1.76)	1.19 (0.64-2.22)	1.71 (1.10-1.15)
Hispanics	1.16 (1.09-1.25)	1 (ref)	1.25 (0.69-2.26)	1.20 (0.67-2.12)	1.59 (0.89-2.86)

Model 1: Adjusted for age, gender, race and site

Model 2: Adjusted for age, gender, race, site, body mass index, LDL, HDL, hypertension, systolic blood pressure, diabetes mellitus, cigarette smoking, family history of heart attack, cholesterol lowering medications, C Reactive Protein

Note: Race not adjusted in ethnic specific analyses