Name
timeremp
Label
Calculated - percent time REM
Description

Percentage of sleep time spent in REM sleep. The ratio of time in REM sleep to total sleep time, expressed as a percentage. [100*(Number of minutes scored as REM) / (total sleep time)]

Units
percent
Type
numeric
Visit vs Calculated - percent time REM
N Mean StdDev Median Min Max Unknown Total
Peds - - - - - - - -
Teenz - - - - - - - -
TREC 513 20.6 ± 5.3 20.4 0.0 39.1 4 517
Age at time of TREC visit vs Calculated - percent time REM
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 20.6 ± 5.3 20.4 0.0 39.1 4 517
16.1 to 17.4 years 129 20.1 ± 5.3 20.0 5.1 36.9 1 130
17.4 to 17.7 years 128 20.3 ± 5.2 20.2 0.0 33.2 1 129
17.7 to 17.9 years 128 21.0 ± 5.1 20.7 3.6 37.4 1 129
17.9 to 19.6 years 128 21.0 ± 5.6 21.6 4.4 39.1 1 129
Male Gender vs Calculated - percent time REM
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 20.6 ± 5.3 20.4 0.0 39.1 4 517
No 254 20.4 ± 4.8 20.3 1.9 39.1 2 256
Yes 259 20.9 ± 5.7 20.7 0.0 37.4 2 261
Race vs Calculated - percent time REM
TREC
N Mean StdDev Median Min Max Unknown Total
Total 513 20.6 ± 5.3 20.4 0.0 39.1 4 517
White 307 19.8 ± 5.3 19.7 0.0 39.1 2 309
Black 183 22.1 ± 4.9 22.0 5.1 37.4 2 185
Other 23 19.3 ± 5.8 20.8 4.4 26.6 - 23