Table 1.
Descriptive statistics of the analyzed variables (means and standard deviations) collected during the 2021–2022 academic school year.
| Wave | Variable | Total Sample (N = 89) M (SD) |
Females (n = 65) M (SD) |
Males (n = 21) M (SD) |
|---|---|---|---|---|
| T1 | Total MET-mins | 2,179 (1,763) | 2,006 (1,657) | 2,780 (1,996) |
| Weekday sleep (hours) | 6.9 (1.0) | 6.8 (1.10) | 7.1 (1.0) | |
| Weekend sleep (hours) | 7.7 (1.4) | 7.8 (1.3) | 7.3 (1.5) | |
| Mental health (1–5 scale) | 3.6 (0.8) | 3.5 (0.9) | 3.6 (0.6) | |
| T2 | Total MET-mins | 2,645 (2,075) | 2,323 (1,970) | 3,474 * (2,160) |
| Weekday sleep (hours) | 6.9 (1.0) | 7.0 (1.1) | 6.8 (1.1) | |
| Weekend sleep (hours) | 7.6 (1.1) | 7.8 ** (1.0) | 7.1 (1.1) | |
| Mental health (1–5 scale) | 3.6 (0.9) | 3.6 (0.9) | 3.6 (0.9) | |
| T3 | Total MET-mins | 2,669 (2,930) | 2,540 (3,213) | 3,012 (2,148) |
| Weekday sleep (hours) | 7.1 (0.9) | 7.2 (0.8) | 7.0 (0.9) | |
| Weekend sleep (hours) | 7.7 (1.0) | 7.8 (1.0) | 7.3 (1.0) | |
| Mental health (1–5 scale) | 3.6 (0.9) | 3.5 (0.9) | 4.0 (0.9) | |
| T4 | Total MET-mins | 2,909 (3,567) | 2,687 (3,772) | 3,780 (2,793) |
| Weekday sleep (hours) | 7.3 (1.1) | 7.4 (1.1) | 7.0 (1.3) | |
| Weekend sleep (hours) | 7.8 (1.2) | 7.9 * (1.1) | 7.1 (1.2) | |
| Mental health (1–5 scale) | 3.7 (1.0) | 3.7 (1.1) | 3.8 (0.8) |
T, assessment timepoint; MET-min, weekly metabolic equivalent of task minutes; bold denotes statistical significance, *p < 0.05, **p < 0.01.