Table 1.
Descriptives of total sleep time (TST), insomnia & impulsivity in the sample.
| Main variables | All (N = 2767) | Boys (N = 1449) | Girls (N = 1315) | Age 13 (N = 1197) | Age 14 (N = 1566) |
|---|---|---|---|---|---|
| Sleep variables (Mean, SD) | |||||
| TST Time 1 | 7:59 (1:09) | 8:12 (1:03) | 7:44 (1:11) | 8:09 (1:02) | 7:51 (1:12) |
| TST Time 2 | 7:49 (1:11) | 7:59 (1:13) | 7:37 (1:06) | 7:56 (1:10) | 7:43 (1:11) |
| TST Time 3 | 7:38 (1:12) | 7:43 (1:12) | 7:32 (1:11) | 7:42 (1:14) | 7:35 (1:10) |
| Insomnia Time 1 | 5.52 (4.9) | 4.75 (4.43) | 6.38 (5.25) | 5.08 (4.67) | 5.85 (5.05) |
| Insomnia Time 2 | 5.87 (5.11) | 4.84 (4.47) | 6.99 (5.51) | 5.37 (4.75) | 6.26 (5.35) |
| Insomnia Time 3 | 6.41 (5.46) | 5.38 (5.96) | 7.60 (5.77) | 6.08 (5.39) | 6.74 (5.52) |
| Impulsivity (Mean, SD) | |||||
| Impulsive behavior Time 1 | 15.87 (5.77) | 15.26 (5.49) | 16.52 (5.99) | 15.37 (5.44) | 16.24 (5.98) |
| Impulsive behavior Time 2 | 15.99 (5.78) | 15.16 (5.29) | 16.91 (6.15) | 15.64 (5.68) | 16.27 (5.85) |
| Impulsive behavior Time 3 | 15.69 (5.96) | 14.81 (5.46) | 16.73 (6.34) | 15.63 (5.99) | 15.75 (5.93) |