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NSRR
TIMES34P - CCSHS Variables
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Cleveland Children's Sleep and Health Study
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Variables
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You are viewing variable information that is kept around for historical purposes only. The latest version
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v0.3.0
ccshs
variables
Measurements
Polysomnography (PSG)
times34p
times34p
Overview
Graphs
Histogram
Age
Gender
Race
More
Related
History
timeremp
timest1
Name
times34p
Label
Percent of sleep time in Stage 3-4
Description
[100*(number of minutes scored as stage 3-4 sleep)/(total sleep time)]
Units
percent (%)
Type
numeric
Tags
deep
delta
slow wave
sws
Visit vs Percent of sleep time in Stage 3-4
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Peds
-
-
-
-
-
-
-
-
Teenz
-
-
-
-
-
-
-
-
TREC
513
23.3
± 8.0
22.3
5.0
56.8
4
517
Age at time of visit vs Percent of sleep time in Stage 3-4
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
23.3
± 8.0
22.3
5.0
56.8
4
517
16.14 to 17.41 years
129
25.5
± 7.9
24.9
11.0
47.8
1
130
17.41 to 17.69 years
128
23.1
± 8.0
22.3
7.6
56.8
1
129
17.69 to 17.91 years
128
22.2
± 7.2
22.0
5.0
45.5
1
129
17.91 to 19.56 years
128
22.3
± 8.6
20.9
7.0
53.5
1
129
Male gender vs Percent of sleep time in Stage 3-4
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
23.3
± 8.0
22.3
5.0
56.8
4
517
No
254
24.1
± 8.0
23.2
7.0
55.5
2
256
Yes
259
22.4
± 8.0
21.2
5.0
56.8
2
261
Race vs Percent of sleep time in Stage 3-4
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
23.3
± 8.0
22.3
5.0
56.8
4
517
White
307
24.3
± 8.1
23.2
5.0
56.8
2
309
Black
183
21.5
± 7.5
20.4
7.0
55.5
2
185
Other
23
24.2
± 8.5
23.1
12.1
44.7
-
23