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