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Table 4 Time and interaction effects for sedentary behaviour outcomes in Belgian boys and girls (adjusted for age)

From: The effect of a cluster randomised control trial on objectively measured sedentary time and parental reports of time spent in sedentary activities in Belgian preschoolers: the ToyBox-study

 

Outcomes

 

Mean difference (follow-up - baseline)

Time

Time * Condition

β (SE)

95 % CI

β (SE)

95 % CI

p-value

BOYSa

Accelerometer

SB weekday

I

+0.29 %

−0.29 (0.46)

−1.19 to 0.60

0.32 (0.78)

−1.21 to 1.85

0.68

  

C

+0.03 %

 

SB weekend day

I

−0.50 %

−0.50 (0.71)

−1.88 to 0.89

-0.64 (1.21)

−3.00 to 1.73

0.60

  

C

−1.13 %

 

Total SB

I

−0.23 %

−0.06 (0.60)

−1.22 to 1.11

-0.17 (0.74)

−1.61 to 1.27

0.82

  

C

−0.06 %

 

SB school hours

I

−1.26 %

−0.85 (0.74)

−2.31 to 0.61

-0.41 (0.92)

−2.20 to 1.39

0.66

  

C

−0.85 %

 

SB after school hours

I

−0.34 %

−2.90 (1.10)**

−5.05 to -0.75

2.56 (1.53)

−0.09 to 5.21

0.06

  

C

−2.90 %

Questionnaire

TV week

I

−0.22 min/day

1.31 (2.16)

−2.92 to 5.55

−1.53 (2.83)

−7.92 to 4.86

0.59

  

C

+1.31 min/day

 

TV weekend

I

+0.29 min/day

−0.10 (3.44)

−6.85 to 6.64

0.39 (4.50)

−8.43 to 9.22

0.93

  

C

−0.10 min/day

 

PC week

I

+4.24 min/day

6.96 (1.30)***

4.42 to 9.51

−2.72 (1.70)

−7.76 to 2.32

0.11

  

C

+6.96 min/day

 

PC weekend

I

+8.26 min/day

13.69 (2.15)***

9.48 to 17.90

−5.42 (2.82)

−10.94 to 0.10

0.05

  

C

+13.69 min/day

 

Quiet play week

I

−1.92 min/day

−4.87 (2.81)

−10.37 to 0.64

2.95 (3.68)

−4.26 to 10.15

0.42

  

C

−4.87 min/day

 

Quiet play weekend

I

−5.24 min/day

−10.31 (6.85)

−23.72 to 3.11

5.07 (8.95)

−12.48 to 22.61

0.57

  

C

−10.31 min/day

GIRLSb

Accelerometer

SB weekday

I

−0.42 %

1.98 (1.12)

−0.22 to 4.19

−2.41 (1.42)

−5.20 to 0.38

0.09

  

C

+1.98 %

 

SB weekend day

I

−1.32 %

−1.10 (1.16)

−3.37 to 1.17

-0.21 (1.47)

−3.08 to 2.66

0.89

  

C

−1.10 %

 

Total SB

I

−0.66 %

1.15 (0.98)

−0.77 to 3.08

-1.81 (1.25)

−4.25 to 0.63

0.15

  

C

+1.15 %

 

SB school hours

I

−1.10 %

0.56 (0.81)

−1.03 to 2.15

-1.66 (1.03)

−3.68 to 0.36

0.11

  

C

+0.56 %

 

SB after school hours

I

−1.74 %

0.30 (1.09)

−1.84 to 2.43

-2.03 (1.38)

−4.74 to 0.67

0.14

  

C

+0.30 %

     

Questionnaire

TV week

I

+0.52 min/day

0.06 (2.30)

−4.45 to 4.56

0.47 (3.00)

−5.41 to 6.34

0.88

  

C

+0.06 min/day

 

TV weekend

I

−5.83 min/day

4.15 (3.81)

−3.32 to 11.62

−9.98 (4.98)*

−19.74 to -0.23

0.04

  

C

+4.15 min/day

 

PC week

I

+5.40 min/day

4.56 (1.64)**

1.34 to 7.79

0.84 (2.15)

−3.37 to 5.05

0.70

  

C

+4.56 min/day

 

PC weekend

I

+7.97 min/day

8.33 (2.08)***

4.26 to 12.39

−0.36 (2.71)

−5.68 to 4.95

0.89

  

C

+8.33 min/day

 

Quiet play week

I

+0.28 min/day

−3.96 (3.80)

−11.41 to 3.49

4.24 (4.97)

−5.49 to 13.97

0.39

  

C

−3.96 min/day

 

Quiet play weekend

I

−13.59 min/day

−3.34 (5.97)

−15.04 to 8.37

−10.25 (7.78)

−25.51 to 5.00

0.19

  

C

−3.34 min/day

  1. SB Sedentary Behaviour, TV Television, PC Personal Computer, SE Standard Error, 95 % CI 95 % Confidence Interval, I Intervention group, C Control group
  2. *p < 0.05, **p < 0.01, ***p < 0.001
  3. aaccelerometer: n = 467 (I = 289; C = 178); questionnaire: n = 901 (I = 506; C = 395)
  4. baccelerometer: n = 392 (I = 240; C = 152); questionnaire: n = 814 (I = 455; C = 359)