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Table 12 Correlation between HRV indices obtained from ECG and SCG on recordings b001–b020 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 0.9987 LAR
SDNN 0.8422 LAR
RMSSD 0.8424 LSq
NN50 0.8356 LAR
pNN50 0.8271 LAR
\({{\text{PSD}}}_{{\text{LF}}}\) 0.9977 LSq
\({{\text{PSD}}}_{{\text{VLF}}}\) 0.8403 LAR
\({{\text{PSD}}}_{{\text{HF}}}\) 0.9977 LSq
LF/HF 0.8393 LAR