Table 2. HRV parameters of patients with and without PAD before and after hemodialysis.

HRV parameters (frequency domain)	Without PAD		With PAD
	Before hemodialysis	After hemodialysis	Before hemodialysis	After hemodialysis
LF (ms2)	2.5 ± 0.4	2.9 ± 0.5	1.6 ± 0.6	2.7 ± 0.6
HF (ms2)	2.3 ± 0.4	2.7 ± 0.4*	1.6 ± 0.7	2.5 ± 0.7
LF% (nu)	42.2 ± 2.2	47.0 ± 2.0*	35.3 ± 3.	40.4 ± 3.4
HF% (nu)	33.0 ± 1.6	30.3 ± 1.3	33.2 ± 1.9	30.2 ± 1.9
LF/HF	0.22± 0.12	0.46 ± 0.10*	-0.07 ± 0.17	0.16 ± 0.16

*P < 0.05 compared to patients before hemodialysis.

Abbreviations are the same as in Table 1.