Variables

Partial regression coefficient (B)

SE

Wald χ²

OR (95% CI)

P value

Grade

0.25

0.03

62.09

1.28 (1.21 - 1.37)

<0.00000000001

Bedtime score before school day

0.34

0.06

37.11

1.41 (1.26 - 1.57)

0.0000000011

Non-school day screen time score

0.24

0.05

25.30

1.27 (1.16 - 1.40)

0.00000049

Self-reported academic performance score

0.34

0.07

26.64

1.41(1.24 - 1.60)

0.00000025

Skipping breakfast score

0.17

0.08

4.18

1.18 (1.01 - 1.39)

0.041

Wake time score on school day

−0.18

0.08

4.92

0.84 (0.71 - 0.98)

0.026

After-school activity score

0.03

0.01

20.42

1.03 (1.02 - 1.04)

0.0000062

Physical activity score

0.06

0.02

11.28

1.06 (1.03 - 1.10)

0.00078

Standardised BMI

0.09

0.05

3.18

1.09 (0.99 - 1.21)

0.075

constant

−6.65

0.40