Table 1.

Clinical and arterial characteristics by tertiles of BMI

	1	2	3	p
	BMI < 40.9	40.9 ≤ BMI ≤ 49.0	BMI > 49.0
	n = 81	n = 82	n = 81
Age, years	46 ± 11	45 ± 11	42 ± 11	0.01
Women, %	83	84	73	0.14
Race, %				0.11
White	58	54	48	–
Black	25	38	28	–
Hispanic	17	8	24	–
Diabetes, %	28	33	32	0.77
Hyperlipidemia, %	44	39	32	0.32
Hypertension, %	36	48	54	0.07
Smoking, %	43	32	50	0.07
Statin therapy, %	25	21	17	0.39
Systolic blood pressure, mmHg	128 ± 14	134 ± 14	129 ± 15	0.89
Diastolic blood pressure, mmHg	73 ± 9	75 ± 11	70 ± 12	0.21
Total cholesterol, mg/dl	189 ± 38	194 ± 33	186 ± 39	0.61
HDL cholesterol, mg/dl	50 ± 12	47 ± 10	48 ± 16	0.44
LDL cholesterol, mg/dl	112 ± 31	116 ± 2	110 ± 3	0.70
Triglycerides, mg/dl	139 ± 79	150 ± 101	142 ± 88	0.85
Glucose, mg/dl	108 ± 39	102 ± 32	108 ± 31	0.96
Insulin, μIU/ml	16.0 ± 14.4	14.6 ± 9.9	20.9 ± 12.6	0.04
Flow velocity, cm/sec	23 ± 11	20 ± 8	20 ± 7	0.08
Flow, ml/min	172 ± 117	173 ± 94	179 ± 94	0.66
Shear stress, dyne/cm2	16.4 ± 7.7	13.7 ± 5.6	13.6 ± 5.8	0.008

Mean ± SD; p for ANOVA linear trend or chi-square.