Histogram
Sleep stage of third 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 | 5,430 | - | 6,784 | - |
| Stage 1 | 1,890 | - | 2,076 | - |
| Stage 2 | 20,815 | - | 20,951 | - |
| Stage 3/4 | 6,098 | - | 5,878 | - |
| Stage 3/4 | 452 | - | 311 | - |
| REM stage | 7,749 | - | 8,082 | - |
| Movement/Wake | - | - | 3 | - |