ihr lf_hf

Histogram

Visit Number vs Low frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.04 and 0.15 Hz
N Mean StdDev Median Min Max Unknown Total
Baseline 45,072 0.002 ± 0.002 0.0009 9.0,-07 0.09 - 45,072
Follow-up 40,073 0.002 ± 0.002 0.0009 2.0,-06 0.05 - 40,073