Assessment of pulse rate variability by the method of pulse frequency demodulation

Table 1 Agreement between PRV and HRV for inter-individual comparisons

	N	PRV Mean (SD) ms	HRV Mean (SD) ms	Mean difference ms	Upper limit of agreement ms	Lower limit of agreement ms	ICC
LF	30	27.4 (7.5)	27.6 (7.3)	0.2	1.2	-0.7	0.997
HF	30	31.6 (10.7)	31.4 (10.5)	-0.2	3.9	-4.4	0.981

Analyses were performed for mean values of individual subjects.
HF = high frequency component, HRV = heart rate variability, ICC = intraclass correlation coefficient, LF = low frequency component, PRV = pulse rate variability, SD = standard deviation.

ISSN: 1475-925X