Name

hf

Label

High frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.15 and 0.4 Hz

Units
milliseconds squared
Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs High frequency power: the normal sinus to normal sinus interbeat (NN) interval spectral power between 0.15 and 0.4 Hz
N Mean StdDev Median Min Max Unknown Total
Visit 1 42,920 673.0 ± 1,509.2 270.9 2.2 33,299.5 - 42,920
Interim Follow-up Visit - - - - - - - -
Visit 2 44,578 635.8 ± 1,633.8 241.8 1.0 70,262.6 - 44,578
CVD Outcomes - - - - - - - -