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NSRR
SLEEPSTAGE09 - CHAT Variables
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Childhood Adenotonsillectomy Trial
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variables
HRV Analysis
sleepstage09
sleepstage09
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sleepstage08
sleepstage10
Name
sleepstage09
Label
Sleep stage of ninth 30 second epoch in 5 minute window
Domain
sleepstage
0: Wake
1: Stage 1
2: Stage 2
3: Stage 3/4
4: Stage 3/4
5: REM stage
Type
choices
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