Table 3 Number of ECG time segments for which the standardized difference between Actiheart and Holter HRV estimates (in units of repeatability standard deviations, z) exceeds 1 and 2, respectively
HRV metric | s(repeatability) | Number of segments z>1 | Percentage of totala | Number of segments z>2 | Percentage of totala |
|---|---|---|---|---|---|
ln(TP) | 0.41 | 19 | 3.9% | 4 | 0.8% |
ln(LFP) | 0.39 | 28 | 5.7% | 10 | 2.0% |
ln(HFP) | 0.50 | 37 | 7.6% | 12 | 2.5% |
ln(LF/HF) | 0.41 | 47 | 9.6% | 12 | 2.5% |
LFn.u. | 0.078 | 39 | 8.0% | 12 | 2.5% |
HFn.u. | 0.078 | 32 | 6.5% | 8 | 1.6% |