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NSRR
SLEEPSTAGE08 - CHAT Variables
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Childhood Adenotonsillectomy Trial
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You are viewing variable information that is kept around for historical purposes only. The latest version
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variables
HRV Analysis
sleepstage08
sleepstage08
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sleepstage07
sleepstage09
Name
sleepstage08
Label
Sleep stage of eighth 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 eighth 30 second epoch in 5 minute window vs Visit Number
Baseline
Follow-up
Total
44,622
39,773
Wake
4,018
2,950
Stage 1
3,349
2,684
Stage 2
16,821
16,159
Stage 3/4
12,754
11,163
Stage 3/4
-
39
REM stage
7,680
6,778