Table 2 Age 9: Model-based estimates of covariate means and test for differences across classes

OVERALL

55.2%

0.32

15.6

2.89

5.87

Highly active

7.1%

0.22

(−0.02, 0.46)

15.3

(11.5, 19.1)

2.90

(2.46, 3.34)

7.53

(6.91, 8.14)

Active/ light

44.2%

0.81

(0.42, 1.19)

21.8

(15.5, 28.1)

2.33

(1.78, 2.88)

6.25

(5.45, 7.04)

Active/ sed

44.6%

−0.18

(−0.43, 0.07)

11.8

(9.1, 14.5)

2.72

(2.35, 3.10)

6.14

(5.56, 6.72)

Average

56.2%

0.27

(0.13, 0.42)

15.5

(13.4, 17.5)

2.70

(2.46, 2.93)

6.11

(5.78, 6.44)

Inactive/light

75.1%

0.56

(0.36, 0.75)

17.8

(15.2, 20.5)

3.03

(2.71, 3.35)

5.38

(5.00, 5.77)

Inactive/sed

55.2%

0.36

(0.16, 0.56)

14.6

(12.2, 17.0)

3.28

(3.00, 3.55)

5.13

(4.74, 5.52)

P-value^a

< 0.0005

< 0.0005

0.007

0.007

< 0.0005