Name

nn_rr

Label

Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals

Type
numeric
Sleep Heart Health Study (SHHS) Visit Number vs Ratio of consecutive normal sinus beats (NN) over all cardiac inter-beat (RR) intervals
N Mean StdDev Median Min Max Unknown Total
Visit 1 42,920 1.0 ± 0.03 1.0 0.3 1.0 - 42,920
Interim Follow-up Visit - - - - - - - -
Visit 2 44,578 1.0 ± 0.06 1.0 0.5 1.0 - 44,578
CVD Outcomes - - - - - - - -