Histogram
Sleep stage of ninth 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 | 5,392 | - | 6,784 | - |
| Stage 1 | 1,650 | - | 1,842 | - |
| Stage 2 | 20,947 | - | 21,024 | - |
| Stage 3/4 | 6,114 | - | 5,923 | - |
| Stage 3/4 | 475 | - | 333 | - |
| REM stage | 7,856 | - | 8,175 | - |
| Movement/Wake | - | - | 4 | - |