Name

tmstg34p

Label

Percentage of sleep time in stage 3-4 sleep

Description

[(Number of minutes scored as stage 3/4) / (Total Sleep Time (TST))] * 100 (use calculated variable - sleep wake studies screened out)

Units
percent (%)
Type
numeric
Visit Number vs Percentage of sleep time in stage 3-4 sleep
N Mean StdDev Median Min Max Unknown Total
Baseline 453 31.6 ± 7.4 31.3 12.8 56.0 11 464
Follow-up 407 30.5 ± 6.9 29.9 12.9 51.9 46 453
Treatment Arm vs Percentage of sleep time in stage 3-4 sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 31.6 ± 7.4 31.3 12.8 56.0 - 453
Early adenotonsillectomy (EAT) 226 31.5 ± 7.2 31.4 15.7 56.0 - 226
Watchful waiting with supportive care (WWSC) 227 31.6 ± 7.6 31.3 12.8 55.0 - 227
Treatment Arm vs Percentage of sleep time in stage 3-4 sleep
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 30.5 ± 6.9 29.9 12.9 51.9 46 453
Early adenotonsillectomy (EAT) 199 30.0 ± 7.0 29.4 12.9 50.6 27 226
Watchful waiting with supportive care (WWSC) 208 30.9 ± 6.7 30.4 16.5 51.9 19 227
Age vs Percentage of sleep time in stage 3-4 sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 31.6 ± 7.4 31.3 12.8 56.0 - 453
5 - 7 years old 329 32.1 ± 7.5 31.6 15.7 56.0 - 329
8 - 10 years old 124 30.2 ± 7.1 30.0 12.8 51.3 - 124
Age vs Percentage of sleep time in stage 3-4 sleep
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 397 30.4 ± 6.9 29.8 12.9 51.9 2 399
5 - 7 years old 260 31.2 ± 7.0 30.6 12.9 50.6 2 262
8 - 10 years old 137 28.9 ± 6.5 28.6 16.5 51.9 - 137
Gender vs Percentage of sleep time in stage 3-4 sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 31.6 ± 7.4 31.3 12.8 56.0 - 453
Female 234 30.9 ± 7.3 30.1 12.8 56.0 - 234
Male 219 32.2 ± 7.6 32.4 15.7 55.0 - 219
Gender vs Percentage of sleep time in stage 3-4 sleep
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 30.5 ± 6.9 29.9 12.9 51.9 46 453
Female 209 30.0 ± 6.8 29.8 12.9 50.1 25 234
Male 198 30.9 ± 6.9 30.3 13.6 51.9 21 219
Race vs Percentage of sleep time in stage 3-4 sleep
Baseline
N Mean StdDev Median Min Max Unknown Total
Total 453 31.6 ± 7.4 31.3 12.8 56.0 - 453
White 156 33.1 ± 7.4 32.1 19.3 55.0 - 156
Black 249 30.3 ± 7.0 30.8 12.8 51.3 - 249
Other 48 33.3 ± 8.6 32.7 17.1 56.0 - 48
Race vs Percentage of sleep time in stage 3-4 sleep
Follow-up
N Mean StdDev Median Min Max Unknown Total
Total 407 30.5 ± 6.9 29.9 12.9 51.9 46 453
White 147 31.4 ± 7.2 31.2 17.3 51.9 9 156
Black 217 29.6 ± 6.5 29.2 13.6 50.1 32 249
Other 43 31.4 ± 7.1 31.5 12.9 49.6 5 48