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Table 3 Time and interaction effects for LPA, MPA, VPA, total PA, and MVPA in preschoolers from low SES, medium SES and high SES kindergartens (adjusted for sex and age)

From: The effect of a kindergarten-based, family-involved intervention on objectively measured physical activity in Belgian preschool boys and girls of high and low SES: the ToyBox-study

 

Low SES n = 169 (I = 102, C = 67)

Medium SES n = 149 (I = 104 , C = 45)

High SES n = 154 (I = 95, C = 59)

 

PRE (%)

POST (%)

Time

Time * condition

PRE (%)

POST (%)

Time

Time * condition

PRE (%)

POST (%)

Time

Time * condition

ß

ß

ß

ß

ß

ß

LPA

Day

I

47.0

46.4

−0.04

−0.52

48.9

47.0

−3.00 ***

1.08

46.7

46.4

0.08

−0.38

 

C

45.5

45.4

  

49.2

46.2

  

45.7

45.8

  

Weekday

I

48.0

47.0

−0.13

−0.95

48.8

47.8

−3.33 ***

2.35 **

46.9

45.9

−1.09

0.04

 

C

46.5

46.4

  

49.6

46.3

  

46.4

45.3

  

Weekend day

I

44.8

45.3

0.63

−0.10

48.1

45.6

−3.04 **

0.49

46.6

47.7

1.53

−0.44

 

C

43.1

43.7

  

47.6

44.6

  

45.5

47.0

  

School hours1

I

49.6

39.6

−1.07

−1.17 **

49.8

38.6

−1.25 **

1.04

48.1

41.3

−1.58 ***

1.36 ***

 

C

47.4

44.5

  

50.9

40.9

  

45.8

29.0

  

After school hours

I

38.1

35.1

−3.26 **

0.26

38.7

31.3

−1.98

−5.40 *

39.3

35.5

−11.80 ***

7.97 ***

 

C

38.2

34.9

  

39.0

37.1

  

37.2

25.4

  

MPA

Day2

I

5.8

6.3

0.23

0.32

5.8

6.3

1.16 **

−1.07

5.7

6.7

−1.01

1.21 **

 

C

5.7

5.9

  

5.5

6.4

  

5.9

5.9

  

Weekday2

I

5.8

6.1

0.28

−0.01

5.6

6.1

1.20 **

−1.10

5.4

6.6

−1.04

1.26 **

 

C

5.7

6.0

  

5.5

6.5

  

5.8

5.6

  

Weekend day3

I

5.2

5.6

1.09

−1.01

6.0

6.6

0.12

0.41

6.2

6.7

1.06

1.01

 

C

5.0

5.4

  

5.9

6.0

  

6.0

6.4

  

School hours4

I

5.9

5.8

−0.21

0.08

5.6

5.3

1.09

−1.13

5.9

6.5

−0.95 **

1.64 ***

 

C

5.9

5.7

  

5.6

6.1

  

5.9

5.0

  

After school hours1

I

4.5

4.0

−1.14

1.03

4.3

4.1

1.11

−1.15

4.3

4.5

−1.37 **

1.41 **

 

C

4.1

3.6

  

4.2

4.7

  

4.5

3.3

  

VPA

Day1

I

1.6

2.1

1.14

1.14

1.6

2.0

1.33 **

−1.05

1.9

2.4

1.03

1.26 *

 

C

1.8

2.0

  

1.5

2.1

  

1.9

1.9

  

Weekday1

I

1.4

1.8

1.09

1.12

1.4

1.9

1.54 ***

−1.14

1.6

2.2

−1.01

1.42 **

 

C

1.6

1.7

  

1.3

2.0

  

1.7

1.7

  

Weekend day1

I

1.7

2.4

1.26 *

1.09

1.6

1.9

−1.00

1.21

2.3

2.7

1.17

1.01

 

C

1.9

2.4

  

1.8

1.8

  

1.9

2.2

  

School hours1

I

1.2

1.5

1.26 **

1.05

1.1

1.8

1.55 ***

1.05

1.3

1.9

1.58 ***

−1.09

 

C

1.2

1.5

  

1.2

1.8

  

1.3

2.1

  

After school hours1

I

1.2

1.4

−1.29 *

1.50 **

1.1

1.9

1.38

1.25

1.3

1.4

1.05

1.04

 

C

1.3

1.0

  

1.1

1.5

  

1.5

1.5

  

Total PA

Day

I

54.5

55.2

0.65

−0.004

57.1

56.1

−1.62

0.60

54.8

56.1

0.21

1.12

 

C

53.2

53.8

  

57.0

55.4

  

54.0

54.2

  

Weekday

I

55.6

55.3

0.52

−0.78

56.7

56.6

−1.58

1.52

54.6

55.4

−1.28

2.08

 

C

54.0

54.6

  

57.0

55.4

  

54.6

53.4

  

Weekend day

I

52.9

54.7

2.02

−0.30

56.2

54.6

−2.81

1.19

56.3

58.3

2.84 *

−0.76

 

C

51.1

53.1

  

56.0

53.2

  

54.4

57.3

  

School hours1

I

56.6

47.9

−1.05

−1.12 **

57.3

47.9

−1.18 **

−1.01

55.9

50.6

−1.40 ***

1.27 ***

 

C

54.6

51.8

  

58.6

49.7

  

53.6

38.2

  

After school hours

I

45.0

42.2

−3.66 *

0.91

45.7

50.7

−0.85

5.82 *

46.2

43.0

−12.66 ***

9.52 ***

 

C

44.9

41.2

  

45.6

44.7

  

44.6

32.0

  

MVPA

Day2

I

7.5

8.7

0.67 *

0.53

7.4

8.4

1.20 **

−1.06

7.7

9.3

1.00

1.21 **

 

C

7.8

8.4

  

7.1

8.6

  

7.9

8.0

  

Weekday1

I

7.0

7.5

1.05

1.02

7.1

8.1

1.27 ***

−1.11

7.1

8.9

−1.02

1.29 **

 

C

7.0

7.4

  

6.8

8.7

  

7.7

7.5

  

Weekend day1

I

7.1

8.2

1.13

1.02

7.3

8.2

1.00

1.12

8.9

9.8

1.12

−1.01

 

C

7.1

8.0

  

7.5

7.6

  

8.1

9.0

  

School hours1

I

6.7

7.0

1.03

1.01

6.8

7.6

1.18 **

−1.05

6.8

8.2

1.03

1.16

 

C

6.6

6.8

  

6.9

8.2

  

7.0

7.2

  

After school hours1

I

5.7

5.8

−1.20 **

1.22 *

5.6

6.6

1.15

1.02

5.8

6.1

−1.15

1.22

 

C

5.7

5.7

  

5.6

6.4

  

6.1

5.4

  
  1. *p < 0.10, **p < 0.05, ***p < 0.001.
  2. 1Variable was log-transformed for all three SES-levels.
  3. 2Variable was log-transformed for medium SES and high SES.
  4. 3Variable was log-transformed for low SES and high SES.
  5. 4Variable was log-transformed for medium SES.
  6. LPA = Light Physical Activity; MPA = Moderate Physical Activity; VPA = Vigorous Physical Activity; Total PA = Total Physical Activity; MVPA = Moderate- to Vigorous Physical Activity; I = Intervention group; C = Control group; SES = Socio-Economic Status.