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Table 10 Correlation between HRV indices obtained from ECG and SCG on recordings p001–p020

From: Comparison of HRV indices obtained from ECG and SCG signals from CEBS database

HRV index \(R^2\) (reference algorithm) \(R^2\) (tested algorithm)
Mean NN 1.0000 0.9984
SDNN 0.9232 0.0043
RMSSD 0.9536 0.0176
NN50 0.8957 0.0504
pNN50 0.6782 0.0684
\({{\text{PSD}}}_{{\text{LF}}}\) 1.0000 0.9980
\({{\text{PSD}}}_{{\text{VLF}}}\) 1.0000 0.0094
\({{\text{PSD}}}_{{\text{HF}}}\) 1.0000 0.9980
LF/HF 0.9976 0.9629