rem_lat1 slplatp
Name
slp_eff
Label
Sleep efficiency percentage
Description

Percentage of time in bed that was spent sleeping [100*(Total Sleep Time (TST)) / (total time in bed)]

Calculation
slp_eff = 100*(slpprdp)/timebedp
Units
percent
Type
numeric
Tags
non-rapid eye movement non-rem nrem rapid eye movement rem
Visit Number vs Sleep efficiency percentage
N Mean StdDev Median Min Max Unknown Total
Baseline 453 86.0 ± 8.6 88.2 47.0 97.9 11 464
Follow-up 407 87.9 ± 7.6 89.9 58.0 99.5 46 453
Treatment Arm vs Sleep efficiency percentage
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 86.0 ± 8.6 88.2 47.0 97.9 - 453
Early adenotonsillectomy (eAT) 226 85.8 ± 9.0 88.1 47.0 97.9 - 226
Watchful waiting (WWSC) 227 86.1 ± 8.2 88.3 57.4 97.7 - 227
Treatment Arm vs Sleep efficiency percentage
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 87.9 ± 7.6 89.9 58.0 99.5 46 453
Early adenotonsillectomy (eAT) 199 88.1 ± 7.3 89.9 58.0 99.5 27 226
Watchful waiting (WWSC) 208 87.7 ± 7.8 89.9 62.6 98.0 19 227
Age vs Sleep efficiency percentage
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 86.0 ± 8.6 88.2 47.0 97.9 - 453
5-7 yrs old 329 86.0 ± 8.3 88.2 54.9 97.9 - 329
8-10 yrs old 124 85.7 ± 9.4 88.3 47.0 97.8 - 124
Age vs Sleep efficiency percentage
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 88.0 ± 7.6 90.0 58.0 99.5 2 399
5-7 yrs old 260 88.1 ± 7.7 90.2 58.0 99.5 2 262
8-10 yrs old 137 87.7 ± 7.5 89.3 64.9 98.0 - 137
Gender vs Sleep efficiency percentage
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 86.0 ± 8.6 88.2 47.0 97.9 - 453
Female 234 86.4 ± 8.2 88.6 54.9 97.9 - 234
Male 219 85.5 ± 9.0 87.6 47.0 97.8 - 219
Gender vs Sleep efficiency percentage
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 87.9 ± 7.6 89.9 58.0 99.5 46 453
Female 209 88.0 ± 7.1 89.8 66.3 98.7 25 234
Male 198 87.9 ± 8.0 89.9 58.0 99.5 21 219
Race vs Sleep efficiency percentage
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 86.0 ± 8.6 88.2 47.0 97.9 - 453
White 156 84.8 ± 8.5 86.9 54.9 97.1 - 156
Black 249 87.1 ± 8.4 89.0 50.8 97.9 - 249
Other 48 83.4 ± 9.3 85.1 47.0 97.0 - 48
Race vs Sleep efficiency percentage
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 87.9 ± 7.6 89.9 58.0 99.5 46 453
White 147 87.5 ± 7.1 89.3 66.7 98.1 9 156
Black 217 88.4 ± 7.9 90.7 58.0 99.5 32 249
Other 43 86.8 ± 7.2 86.6 70.9 98.0 5 48