Histogram

Sleep Heart Health Study (SHHS) Visit Number vs Total Sleep Duration: the interval between sleep onset and sleep offset while the participant is asleep from polysomnography
N Mean StdDev Median Min Max Unknown Total
Visit 1 5,804 359.8 ± 64.6 367.0 34.5 519.0 - 5,804
Interim Follow-up Visit - - - - - - - -
Visit 2 2,651 374.1 ± 69.4 381.0 68.0 605.0 1,660 4,311
CVD Outcomes - - - - - - - -