Figure 8
From: Assessment of pulse rate variability by the method of pulse frequency demodulation
Agreement of demodulated pulse rate by PFDM and ECG heart rate. Panels A and B: minute-to-minute pulse rate (PR) demodulated by the PFDM (panel A) and minute-to-minute heart rate (HR) from simultaneously recorded ECG (panel B) in a representative subject during all-night sleep. Panel C: correlation between PR and HR with the intraclass correlation coefficient (ICC). Panel D: the Bland and Altman plot with the upper and lower limits of agreement (+2 SD and -2 SD, respectively). SD = standard deviation.