pnn50 sdann
Name
rmssd
Label
Square root of the mean of the squares of difference between adjacent normal sinus to normal sinus interbeat (NN) intervals
Units
milliseconds
Type
numeric
Tags
heart rate variability ms
Sleep Heart Health Study (SHHS) Visit Number vs Square root of the mean of the squares of difference between adjacent normal sinus to normal sinus interbeat (NN) intervals
N Mean StdDev Median Min Max Unknown Total
Visit 1 486 39.1 ± 23.8 34.1 8.9 246.5 - 486
Interim Follow-up Visit - - - - - - - -
Visit 2 493 37.2 ± 22.9 31.8 5.2 204.5 - 493
CVD Outcomes - - - - - - - -