SOL (≥60 min) | Sleep deficit (≥2 h) | |||
---|---|---|---|---|
OR | 95% CI | OR | 95% CI | |
Electronic devices used in the last hour before bedtime | ||||
PC | 1.52*** | 1.34 to 1.71 | 1.53*** | 1.34 to 1.76 |
Cell phone | 1.48*** | 1.30 to 1.68 | 1.35*** | 1.17 to 1.55 |
MP3-player | 1.36*** | 1.25 to 1.48 | 1.21*** | 1.10 to 1.32 |
Tablet | 1.18*** | 1.08 to 1.29 | 1.12* | 1.02 to 1.23 |
Console | 1.13*** | 1.04 to 1.23 | 1.20*** | 1.10 to 1.32 |
TV | 1.19*** | 1.10 to 1.30 | 1.36*** | 1.24 to 1.49 |
Daytime screen use | ||||
Total screen time (4 h+) | 1.49*** | 1.36 to 1.64 | 1.72*** | 1.56 to 1.89 |
Console games (2 h+) | 1.20* | 1.04 to 1.38 | 1.31*** | 1.13 to 1.52 |
PC games (2 h+) | 1.19** | 1.05 to 1.34 | 1.41*** | 1.25 to 1.60 |
Online chat (2 h+) | 1.43*** | 1.31 to 1.56 | 1.87*** | 1.70 to 2.05 |
Email (2 h+) | 1.93*** | 1.55 to 2.40 | 1.68*** | 1.31 to 2.14 |
Other PC use (2 h+) | 1.38*** | 1.26 to 1.51 | 1.37*** | 1.25 to 1.51 |
*p<0.05; **p<0.01; ***p<0.001.
†Reference: SOL <60 min.