sleepstage08 sleepstage10

Histogram

Sleep stage of ninth 30 second epoch in 5 minute window vs Visit Number
Baseline Follow-up
Total 44,621 39,667
Wake 4,071 2,950
Stage 1 3,260 2,678
Stage 2 16,738 16,108
Stage 3/4 12,823 11,143
Stage 3/4 - 38
REM stage 7,729 6,750