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NSRR
SLEEPSTAGE01 - CHAT Variables
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Childhood Adenotonsillectomy Trial
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Variables
v0.14.0
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variables
Clinical Data
Diagnostic Studies
Heart Rate Variability
sleepstage01
sleepstage01
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sdnnidx
sleepstage02
Name
sleepstage01
Label
Sleep stage of first 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 first 30 second epoch in 5 minute window vs Visit Number
Baseline
Follow-up
Total
44,621
39,667
Wake
4,026
2,912
Stage 1
3,635
3,034
Stage 2
16,673
15,968
Stage 3/4
12,763
11,091
Stage 3/4
-
41
REM stage
7,524
6,621