sdnnidx ulf
Name
tot_pwr
Label
Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz
Units
milliseconds squared
Type
numeric
Tags
heart rate variability ms2
Sleep Heart Health Study (SHHS) Visit Number vs Total normal sinus to normal sinus interbeat (NN) interval spectral power up to 0.4 Hz
N Mean StdDev Median Min Max Unknown Total
Visit 1 486 8,010.5 ± 5,846.6 6,608.5 590.9 51,392.9 - 486
Interim Follow-up Visit - - - - - - - -
Visit 2 493 7,604.4 ± 5,812.2 6,182.7 283.5 48,863.7 - 493
CVD Outcomes - - - - - - - -