Table 2.

Associations among 6-min walk distances and clinical characteristics in 251 symptomatic patients with peripheral artery disease.

Variables	6-min Walk Pain-Free Distance	p	6-min Walk Distance	p
Age	0.082	0.198	−0.014	0.828
Weight	−0.065	0.315	−0.011	0.866
Height	0.126	0.048	0.340	<.001
Body Mass Index	−0.111	0.083	−0.178	0.005
Homeostasis Model Assessment-Insulin Resistance	−0.173	0.007	−0.157	0.014
Ankle-Brachial Index	0.165	0.010	0.292	<.001
Hydroxyl Radical Antioxidant Capacity	0.011	0.886	0.184	0.020
High sensitivity C-Reactive Protein	−0.023	0.729	−0.220	<.001
Cultured Endothelial Cell Apoptosis	−0.072	0.361	0.131	0.095
Cultured Endothelial Cell	−0.068	0.404	−0.019	0.821
Reactive Oxygen Species production
Cultured Endothelial Cell NF-κB activity	−0.151	0.061	−0.120	0.136
Sex (Men)	0.202	0.001	0.368	<.001
Race (Caucasian)	−0.016	0.803	0.036	0.579
Current Smoking	−0.005	0.941	−0.070	0.281
Hypertension	−0.059	0.355	−0.017	0.796
Dyslipidemia	−0.211	<.001	−0.198	0.002
Diabetes	−0.025	0.692	−0.276	<.001
Metabolic Syndrome	−0.102	0.111	−0.137	0.032
Obesity	−0.167	0.009	−0.209	0.001
Lower Extremity Revascularization	−0.082	0.200	−0.114	0.075
Coronary Artery Disease	−0.132	0.039	−0.191	0.003
Cerebrovascular Disease	−0.154	0.016	−0.113	0.077
Chronic Kidney Disease	−0.161	0.012	−0.179	0.005
Chronic Obstructive Pulmonary Disease	0.045	0.482	−0.133	0.037

Values are Pearson correlation coefficients for continuous variables and Spearman correlation coefficients for discrete variables.