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Table 3 Linear mixed model analyses of the intervention effect on Total Physical activity and Moderate to Vigorous Physical activity

From: A peer coach intervention in childcare centres enhances early childhood physical activity: The Active Early Learning (AEL) cluster randomised controlled trial

 

Model 1

Total Physical Activity (min/h)

Model 2

Moderate to Vigorous Physical Activity (min/h)

Estimates

CI

p

Estimates

CI

p

Fixed Effects

 Intercept

8.75

3.45–14.04

0.001

2.98

−0.90 – 6.87

0.132

 Time [POST]

−2.30

−3.54 – −1.05

< 0.001

−1.43

− 2.33 – −0.52

0.002

 Group [Intervention]

−0.23

−2.32 – 1.87

0.833

−0.11

−1.54 – 1.31

0.875

 Age

0.14

−0.95 – 1.22

0.808

0.32

−0.49 – 1.12

0.437

 Sex [Boy]

2.75

1.83–3.67

< 0.001

2.05

1.37–2.73

< 0.001

 Wear-time

0.02

0.01–0.02

< 0.001

0.01

0.01–0.01

< 0.001

 Group by Time [POST]

4.06

2.66–5.47

< 0.001

2.33

1.31–3.34

< 0.001

Random Effectsa

 Mean square variance σ2

13.29

3.65

 

6.84

2.61

 

 Between-participant variance

5.15

2.27

 

3.13

1.77

 

 Between-centre variance

3.07

1.75

 

1.32

1.15

 

 Intraclass Correlation Coefficient (ICC)

0.38

  

0.39

  

N: Centres

15

  

15

  

N: Participants

281

  

281

  

N: Observations

451

  

451

  
  1. a Random fffects are shown as estimates and standard errors