Table 2.

Measures of Vascular Function in Metabolic Syndrome and Insulin Resistance: Age- and Sex-Adjusted Model

	Metabolic Syndrome			Insulin Resistance
Characteristic (units)	Yes	No	p value	Yes	No	p value
Baseline brachial diameter (mm)	4.36±0.02	4.12±0.02	<0.0001	4.35±0.03	4.16±0.01	<0.0001
Flow-mediated dilation (mm)	0.107±0.004	0.128±0.003	<0.0001	0.112±0.005	0.123±0.003	0.038
Flow-mediated dilation (%)	2.61±0.10	3.29±0.07	<0.0001	2.75±0.12	3.15±0.07	0.004
Baseline mean flow velocity (cm/sec)	9.0±0.2	7.6±0.2	<0.0001	9.6±0.3	7.6±0.1	<0.0001
Hyperemic mean flow velocity (cm/sec)	49.9±0.8	54.9±0.6	<0.0001	50.3±1.0	54.0±0.5	0.002

Values expressed as mean±standard error

Brachial artery diameter and flow-mediated dilation n=2123

Doppler flow response n=1521