Histogram
Sleep stage of fourth 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 | 5,433 | - | 6,773 | - |
| Stage 1 | 1,845 | - | 1,951 | - |
| Stage 2 | 20,865 | - | 21,041 | - |
| Stage 3/4 | 6,028 | - | 5,888 | - |
| Stage 3/4 | 480 | - | 308 | - |
| REM stage | 7,783 | - | 8,121 | - |
| Movement/Wake | - | - | 3 | - |