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Table 13 Correlation between HRV indices obtained from ECG and SCG on recordings m001–m020 using robust linear model

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

HRV index \(R^2\) value Robust model fit method
Mean NN 0.9875 LAR
SDNN 0.9251 LAR
RMSSD 0.8424 LSq
NN50 0.2114 LSq
pNN50 0.3109 LSq
\({{\text{PSD}}}_{{\text{LF}}}\) 0.9974 LSq
\({{\text{PSD}}}_{{\text{VLF}}}\) 0.8355 LAR
\({{\text{PSD}}}_{{\text{HF}}}\) 0.9974 LSq
LF/HF 0.8997 LAR