Skip to main content

Table 3 Results of multilevel model analysis on the intervention on children's recess VPA (% of total recess)

From: Children's physical activity levels during school recess: a quasi-experimental intervention study

Parameter

Model 1

Model 2

 

β (SE)

95%CI

p

β (SE)

95%CI

p

Constant

4.63 (0.77)

3.12 to 6.14

<0.001**

9.69 (3.18)

3.46 to 15.92

0.002**

Baseline VPA

0.41 (0.07)

0.27 to 0.55

<0.001**

0.35 (0.07)

0.21 to 0.49

<0.001**

Intervention

1.70 (0.86)

0.01 to 3.39

0.049*

1.30 (0.79)

-0.24 to 2.84

0.098

Sex

NE

  

-3.05 (0.66)

-4.34 to -1.76

<0.001**

Age

NE

  

-0.09 (0.27)

-0.62 to 0.44

0.74

BMI

NE

  

-0.21 (0.12)

-0.45 to 0.03

0.08

Recess duration

NE

  

0.01 (0.02)

-0.03 to 0.05

0.617

Random

      

School Level

1.19 (1.21)

  

0.74 (0.95)

  

Child Level

28.48 (2.72)

  

23.4 (2.32)

  

Deviance

1511.756

  

1347.832

  
  1. Abbreviations: VPA = Vigorous Physical Activity; CI = Confidence Interval; β = Regression coefficient; SE = Standard Error; NE = Not entered.
  2. Model 1 is the crude analysis, where the intervention effect is controlled for baseline physical activity. For the intervention variable, the control group is the reference category). Model 2 is the adjusted analysis, where the effect of the intervention is corrected for sex (boy is the reference category), BMI, age and recess time. * P < 0.05; **P < 0.01.
Back to article page

International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

Contact us