Histogram

Sleep Heart Health Study (SHHS) Visit Number vs Apnea-Hypopnea Index : (All apneas + hypopneas with >= 4% oxygen desaturation or with arousal) / hour of sleep
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 14.5 ± 14.5 9.9 0.0 154.3 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 14.6 ± 14.7 9.7 0.0 117.6 1,660 4,311
CVD Outcomes - - - - - - - -