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NSRR
TIMEST1P - 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
v0.8.0
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v0.3.1
ccshs
variables
Measurements
Polysomnography (PSG)
timest1p
timest1p
Overview
Graphs
Histogram
Age
Gender
Race
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History
timest1
timest2
Name
timest1p
Label
Percent of sleep time in Stage 1 sleep
Description
[100*(number of minutes scored as stage 1 sleep)/(total sleep time)]
Units
percent (%)
Type
numeric
Tags
non rapid
non-rapid eye movement sleep
non rem
non-rem
nrem
Visit vs Percent of sleep time in Stage 1 sleep
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Peds
-
-
-
-
-
-
-
-
Teenz
-
-
-
-
-
-
-
-
TREC
513
4.1
± 2.6
3.6
0.4
20.4
4
517
Age at time of visit vs Percent of sleep time in Stage 1 sleep
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
4.1
± 2.6
3.6
0.4
20.4
4
517
16.14 to 17.41 years
129
3.9
± 2.4
3.5
0.7
15.4
1
130
17.41 to 17.69 years
128
4.3
± 3.0
3.7
0.4
20.4
1
129
17.69 to 17.91 years
128
4.3
± 2.3
3.8
0.7
12.2
1
129
17.91 to 19.56 years
128
4.1
± 2.7
3.4
0.4
18.3
1
129
Male gender vs Percent of sleep time in Stage 1 sleep
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
4.1
± 2.6
3.6
0.4
20.4
4
517
No
254
3.8
± 2.5
3.4
0.4
20.4
2
256
Yes
259
4.5
± 2.7
3.8
0.4
18.3
2
261
Race vs Percent of sleep time in Stage 1 sleep
TREC
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
513
4.1
± 2.6
3.6
0.4
20.4
4
517
White
307
4.1
± 2.4
3.6
0.4
18.2
2
309
Black
183
4.3
± 2.9
3.6
0.7
20.4
2
185
Other
23
4.1
± 2.2
3.6
1.6
9.4
-
23