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Table 3 School time and out of school time multilevel analysis of MPA and VPA

From: School day segmented physical activity patterns of high and low active children

 

School time

Out of school time

 

MPA β (SE)

VPA β (SE)

MPA β (SE)

VPA β (SE)

Constant

8.3 (46.1)

−3.4 (26.7)

2.8 (65.7)

−13.2 (39.2)

Physical activity groupa

1.6 (0.6)††

1.4 (0.5)††

5.1 (1.1)‡

3.0 (0.7)‡

% variance explained

10.3

9.4

10.4

11.2

Child level variables

    

Sexb

−0.1 (1.3)

1.4 (1.2)

0.6 (2.5)

2.7 (1.7)

Age

0.9 (1.0)

−0.04 (0.9)

−0.8 (1.9)

0.6 (1.3)

BMI z-score

0.4 (0.3)

−0.3 (0.2)

1.1 (0.5)†

−0.3 (0.3)

Maturity offset (years from APHV)

−1.0 (0.7)

0.1 (0.6)

−0.5 (1.3)

0.6 (0.9)

IMD

0.02 (0.03)

0.01 (0.03)

0.03 (0.1)

0.05 (0.04)

% variance explained

3.4

3.4

10.8

18.8

School level variables

    

Duration (min)

−0.01 (0.1)

0.03 (0.06)

0.03 (0.1)

0.03 (0.1)

No. enrolled students

−0.01 (0.01)

−0.01 (0.004)

0.01 (0.01)

0.002 (0.004)

Playground area (m2·student-1)

1.0 (0.5)

0.8 (0.3)††

0.4 (0.5)

0.3 (0.3)

Average temperature (°C)

0.01 (0.1)

−0.1 (0.1)

0.2 (0.3)

−0.2 (0.2)

No. days rainfall

−0.2 (0.5)

−0.3 (0.5)

−0.1 (1.1)

−0.6 (0.7)

% variance explained

18.5

15.3

15.3

3.7

Overall model

    

% Total variance explained

28.5

23.0

25.0

27.4

School level variance

4.7 (2.6)

1.1 (0.8)

2.5 (2.3)

0.5 (0.7)

Child level variance

14.3 (1.4)

12.5 (1.2)

53.0 (5.3)

24.7 (2.5)

Total variance

19.0

13.6

55.5

25.2

Deviance

1222.5

1183.7

1415.4

1254.4

ICC

0.25

0.08

0.04

0.02

  1. aFor Physical activity group the reference category is LOW. bFor Sex the reference category is girls. β (SE)
  2. values rounded to 1 decimal place for presentation purposes.
  3. †P < .05.
  4. ††P < .01.
  5. ‡P < .001.