Table 3.
Multiple regression analyses with sleep domains as outcomes and pre-bedtime indexes as predictors
| β | SE | p-value | |
|---|---|---|---|
|
| |||
| Sleep Duration | |||
| Bedtime Routine Inconsistency | −.06 | .05 | .24 |
| Poor Quality Sleep Environments | −.12 | .02 | .02 |
| Security Positive | .08 | 9.15 | .12 |
| Security Negative | −.03 | 23.86 | .54 |
| Family SES | .09 | .003 | .08 |
| F(5,418) = 3.97, p = .001, R2 = .03 | |||
|
| |||
| Sleep Timing | |||
| Bedtime Routine Inconsistency | .18 | .05 | <.001 |
| Poor Quality Sleep Environments | .15 | .02 | .002 |
| Security Positive | −.14 | 9.12 | .002 |
| Security Negative | .02 | 23.79 | .73 |
| Family SES | −.11 | .003 | .03 |
| F(5,418) = 11.30, p < .001, R2 = .11 | |||
|
| |||
| Sleep Variability | |||
| Bedtime Routine Inconsistency | .17 | .04 | <.001 |
| Poor Quality Sleep Environments | .13 | .02 | .01 |
| Security Positive | −.07 | 8.71 | .14 |
| Security Negative | .10 | 22.72 | .05 |
| Family SES | −.07 | .003 | .15 |
| F(5,430) = 7.88, p < .001, R2 = .08 | |||
Note: SES = socioeconomic status