Name

timest2p

Label

Percent of sleep time in Stage 2 sleep

Description

[100*(number of minutes scored as stage 2 sleep)/(total sleep time)]

Units
percent (%)
Type
numeric
Visit vs Percent of sleep time in Stage 2 sleep
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 513 52.0 ± 7.4 52.4 29.1 72.8 4 517
Age at time of visit vs Percent of sleep time in Stage 2 sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 52.0 ± 7.4 52.4 29.1 72.8 4 517
16.14 to 17.41 years 129 50.6 ± 7.5 50.6 29.3 69.4 1 130
17.41 to 17.69 years 128 51.7 ± 7.7 52.7 29.4 66.6 1 129
17.69 to 17.91 years 128 53.1 ± 6.5 53.6 37.7 70.2 1 129
17.91 to 19.56 years 128 52.5 ± 7.8 53.5 29.1 72.8 1 129
Male gender vs Percent of sleep time in Stage 2 sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 52.0 ± 7.4 52.4 29.1 72.8 4 517
No 254 51.7 ± 7.5 52.4 29.1 72.8 2 256
Yes 259 52.2 ± 7.4 52.4 29.3 70.2 2 261
Race vs Percent of sleep time in Stage 2 sleep
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 52.0 ± 7.4 52.4 29.1 72.8 4 517
White 307 51.8 ± 7.6 51.9 29.1 69.4 2 309
Black 183 52.1 ± 7.4 53.1 29.4 72.8 2 185
Other 23 52.4 ± 5.2 50.9 43.0 63.1 - 23