Name
stloutp_dec
Label
Clock time (hours of the day) when the participant is in bed or lights are out from type I polysomnography
Description

Conventionally, this variable would be called the start of time in bed (TIB).

Units
hours (hr)
Type
numeric
Visit vs Clock time (hours of the day) when the participant is in bed or lights are out from type I polysomnography
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 515 22.8 ± 0.5 23.0 20.3 23.2 2 517
Age at time of visit vs Clock time (hours of the day) when the participant is in bed or lights are out from type I polysomnography
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 22.8 ± 0.5 23.0 20.3 23.2 2 517
16.14 to 17.41 years 130 22.8 ± 0.4 23.0 21.3 23.2 - 130
17.41 to 17.69 years 128 22.7 ± 0.5 23.0 20.3 23.0 1 129
17.69 to 17.91 years 129 22.7 ± 0.5 23.0 20.7 23.1 - 129
17.91 to 19.56 years 128 22.8 ± 0.5 23.0 20.6 23.1 1 129
Male gender vs Clock time (hours of the day) when the participant is in bed or lights are out from type I polysomnography
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 22.8 ± 0.5 23.0 20.3 23.2 2 517
No 255 22.8 ± 0.4 23.0 20.7 23.1 1 256
Yes 260 22.7 ± 0.5 23.0 20.3 23.2 1 261
Race vs Clock time (hours of the day) when the participant is in bed or lights are out from type I polysomnography
TREC
N Mean StdDev Median Min Max Unknown Total
Total 515 22.8 ± 0.5 23.0 20.3 23.2 2 517
White 307 22.8 ± 0.4 23.0 20.3 23.2 2 309
Black 185 22.7 ± 0.5 23.0 20.7 23.1 - 185
Other 23 22.8 ± 0.5 23.0 20.6 23.0 - 23