The Indices of Instantaneous Pulse Rate Variability Are Indicators for Daily Life Quality Assessment in Patients with COPD

Table 2

iPRV values in two phase.

Phase	LF	HF	VHF	nLF^a	nHF^a	LF/HF	nLF^b	nHFb	nVHF^b
A	0.37 ± 1.09	0.67 ± 2.00	1.98 ± 6.57	37.30 ± 18.7	62.70 ± 18.70	82.42 ± 89.20	16.33 ± 13.90	23.63 ± 8.77	60.05 ± 15.31
B	1.54 ± 2.63	3.13 ± 7.20	4.77 ± 9.36	35.03 ± 16.84	64.97 ± 16.84	65.37 ± 48.17	15.79 ± 8.27	29.61 ± 14.08	54.59 ± 15.16

value< 0.05 compared with phase A by Wilcoxon sign rank test.