Spearman correlation (‘r’ value) of resting physiological, cardiac autonomic functions with biochemical parameters.

**p#pHF, high frequency spectral power; LF/HF ratio: ratio of LF power to HF power; SDNN, standard deviation of R to R interval; RMSSD, root mean square of successive standard deviation of RR interval; MAP, mean arterial pressure; VCR, vasoconstrictor reserve; TG, triglyceride; FPG, fasting plasma glucose; IR, insulin resistance; TBARS, thiobarbituric acid reactive substances; TAC, total antioxidant capacity; hs-CRP, high sensitive C-reactive protein; TNF-α, tumor necrosis factor alpha.