Histogram
Sleep stage of seventh 30 second epoch in 5 minute window vs Sleep Heart Health Study (SHHS) Visit Number
| Visit 1 | Interim Follow-up Visit | Visit 2 | CVD Outcomes | |
|---|---|---|---|---|
| Total | 42,434 | - | 44,085 | - |
| Wake | 5,404 | - | 6,914 | - |
| Stage 1 | 1,748 | - | 1,865 | - |
| Stage 2 | 20,866 | - | 20,930 | - |
| Stage 3/4 | 6,173 | - | 5,927 | - |
| Stage 3/4 | 447 | - | 333 | - |
| REM stage | 7,795 | - | 8,111 | - |
| Movement/Wake | 1 | - | 5 | - |