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NSRR
SLP_LAT - CFS Variables
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Cleveland Family Study
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You are viewing variable information that is kept around for historical purposes only. The latest version
v0.7.0
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v0.1.1
cfs
variables
Polysomnography
Sleep Architecture
slp_lat
slp_lat
Overview
Graphs
Histogram
Age
Gender
Race
More
Known Issues
Related
History
slp_eff
supinep
KNOWN ISSUES
Please be sure to check the
known issues
before using this variable in analysis.
Name
slp_lat
Label
Sleep latency
Description
Time from lights out time to beginning of sleep, rounded to nearest minute
Calculation
slp_lat
=
slplatp
Units
minutes
Type
numeric
Tags
slp_lat
Visit vs Sleep latency
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Visit 5
376
37.9
± 39.8
32.5
0.0
539.0
359
735
Age at time of visit vs Sleep latency
Visit 5
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
338
38.5
± 40.9
34.0
0.0
539.0
320
658
5-14 yrs old
33
36.8
± 21.4
39.0
0.0
96.0
31
64
15-24 yrs old
70
37.3
± 29.7
34.5
0.0
156.0
42
112
25-34 yrs old
30
35.1
± 23.2
35.5
0.0
88.0
32
62
35-44 years
43
34.9
± 35.3
28.0
0.0
185.0
55
98
45-54 years
71
34.6
± 29.2
29.0
0.0
209.0
77
148
55-64 years
44
37.0
± 31.6
31.5
1.0
161.0
40
84
65-74 years
31
41.7
± 35.1
36.0
0.0
131.0
26
57
75-84 years
15
82.0
± 133.4
46.0
0.0
539.0
16
31
85 years or older
1
9.0
-
9.0
9.0
9.0
1
2
Sex vs Sleep latency
Visit 5
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
376
37.9
± 39.8
32.5
0.0
539.0
359
735
Female
203
35.6
± 31.5
30.0
0.0
209.0
203
406
Male
173
40.7
± 47.7
36.0
0.0
539.0
156
329
Race vs Sleep latency
Visit 5
N
Mean
StdDev
Median
Min
Max
Unknown
Total
Total
376
37.9
± 39.8
32.5
0.0
539.0
359
735
White
185
39.0
± 33.7
35.0
0.0
209.0
119
304
Black
179
36.6
± 46.1
32.0
0.0
539.0
230
409
Other
12
41.3
± 21.7
42.5
10.0
85.0
10
22