Table 1.
Percent or mean ± SD | |
---|---|
Female (%) | 62.4 |
Race/ethnicity (%) | |
White | 63.4 |
Black | 21.5 |
Hispanic (White) | 2.5 |
Asian | 3.0 |
Multiracial | 9.6 |
Age (years) | 15.78 ± 1.04 |
Family yearly income (%) | |
50K or less | 19.4 |
>50K and <=100K | 32.3 |
>100K | 48.4 |
BMI-z | 0.33 ± 0.91 |
Sleep stabilization sleep onset (time) | 00:03 ± 0:59 |
Sleep stabilization sleep offset (time) | 7:03 ± 0.03 |
Sleep stabilization mid-point of sleep (time) | 3:35 ± 41.23 |
Sleep stabilization sleep period (h) | 6.93 ± 1.05 |
Sleep stabilization sleep efficiency | 90.91 ± 6.29 |
Sample features at time of randomization. Categorical variables are listed in percentages, while continuous variables are listed as mean ± SD.