| Average Academic Index | Maths | English | ||||||
---|---|---|---|---|---|---|---|---|---|
 | N | Β (95%CI) | P-value | N | β | P-value | N | β | P-value |
Sleep | |||||||||
 Weekday sleep (hrs/night) | 829 | 0.05 (− 0.6, 0.7) | .888 | 824 | −0.3 (−1.4, 0.8) | .614 | 772 | 0.02 (−0.6, 0.6) | .954 |
 Weekend sleep (hrs/night) | 827 | 0.3 (− 0.2, 0.8) | .241 | 822 | 0.03 (− 0.9, 0.9) | .955 | 770 | 0.5 (0.06, 1.0) | .028 |
 Weekday bedtime ≥23:00 | 829 | −1.1 (−3.3, 1.2) | .365 | 824 | 0.2 (−3.7, 4.0) | .939 | 772 | −1.3 (− 3.4, 0.9) | .245 |
 Weekend bedtime ≥23:00 | 828 | −3.4 (−5.0, −1.7) | <.001 | 823 | −3.9 (−6.7, − 1.1) | .006 | 771 | −2.1 (− 3.6, −0.6) | .005 |
 Poor sleep quality (vs not poor) | 813 | 1.3 (−1.2, 3.8) | .305 | 808 | 1.3 (− 2.9, 5.5) | .549 | 756 | −0.1 (−2.3, 2.2) | .958 |
 Meeting sleep guidelines | 827 | 1.1 (−0.5, 2.8) | .170 | 822 | 0.7 (−2.1, 3.5) | .621 | 770 | 1.0 (−0.5, 2.5) | .174 |
PA | |||||||||
 Days getting 60 min MVPA | 839 | 0.1 (−0.3, 0.5) | .586 | 834 | 0.2 (−0.4, 0.8) | .561 | 782 | 0.1 (−0.2, 0.4) | .632 |
 Participated in sport | 837 | 0.3 (−2.3, 2.8) | .847 | 832 | 0.7 (−3.7, 5.1) | .747 | 780 | −0.1 (−2.5, 2.3) | .916 |
 Unorganized play (hr/day) | 836 | −1.0 (−1.3, −0.6) | <.001 | 831 | − 1.5 (−2.1, − 0.9) | <.001 | 779 | −0.7 (− 1.0, − 0.3) | <.001 |
 Meeting PA guidelines | 839 | 0.3 (− 1.5, 2.1) | .784 | 834 | 1.2 (− 1.9, 4.3) | .442 | 782 | 0.1 (− 1.5, 1.7) | .883 |
Sedentary | |||||||||
 Leisure screen behaviours (hrs/day) | 831 | −0.2 (− 0.3, − 0.2) | <.001 | 826 | −0.3 (− 0.4, − 0.3) | <.001 | 772 | −0.1 (− 0.2, − 0.1) | <.001 |
 Total sedentary behaviours (hrs/day) | 831 | − 0.1 (− 0.2, − 0.1) | <.001 | 826 | −0.2 (− 0.3, − 0.2) | <.001 | 772 | −0.1 (− 0.1, − 0.06) | <.001 |
 Meeting screen guidelines | 831 | 5.8 (3.6, 8.0) | <.001 | 826 | 7.9 (4.1, 11.6) | <.001 | 772 | 3.8 (1.8, 5.8) | <.001 |
Meeting at least 2/3 guidelines (%) | 833 | 2.3 (0.5, 4.0) | .010 | 828 | 3.4 (0.5, 6.4) | .021 | 774 | 1.6 (0.05, 3.1) | .043 |