TABLE 2.
Associations of Screens in Children’s Sleep Environment and Screen Time With Typical Weekday Daily Sleep Duration in the Past Week
| Weekday Sleep Duration, min | ||
|---|---|---|
| Model 1 (partially adjusted)a | Model 2 (fully adjusted)b | |
| β (95% CI) | β (95% CI) | |
| Presence of screen in sleep environment (n = 2048) | ||
| Small screenc | −22.6*** (−31.3 to −13.8) | −20.6*** (−29.7 to −11.4) |
| TVd | −21.3*** (−30.5 to −12.1) | −18.0*** (−27.9 to −8.1) |
| Screen time, h/d (n = 1908) | ||
| TV or DVDs | −4.8*** (−6.4 to −3.2) | −3.6*** (−5.3 to −1.9) |
| Video or computer games | −6.0*** (−8.1 to −3.9) | −5.1*** (−7.4 to −2.7) |
Results from multivariate linear regression models using generalized estimating equations for estimation, adjusted for grade, gender, race or ethnicity (Hispanic, non-Hispanic white, non-Hispanic black, non-Hispanic other, non-Hispanic multiracial), and city.
Additionally adjusted for days in past week participated in ≥30 min of physical activity, simultaneously included indicators for presence of a small screen and TV in the child’s sleep environment for models examining screens in the sleep environment, and simultaneously included hours per day of TV or DVD viewing and video or computer game playing in models examining screen time.
The reference group reported never sleeping near a small screen in the past week.
The reference group reported there was not a TV in the room in which they sleep.
P < .001.