INS and diabetes mellitus: cfPWV resulted positively and significantly associated with age (β = 0.230, P < 0.001), systolic blood pressure (β = 0.152, P < 0.001), hsCRP (β = 0.116, P < 0.01), fasting plasma glucose (β = 0.133, P < 0.001), fasting plasma insulin (β = 0.142, P = 0.001), prevalence of diabetes (β = 0.157, P < 0.001), and prevalence of treatment with hypoglycemic agents (β = −0.138, P < 0.001).