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Table 5 Study 1 – Multiple linear regression model predicting moderate-to-vigorous physical activity (minutes/day)

From: Relating outdoor play to sedentary behavior and physical activity in youth - results from a cohort study

 

Unstandardized beta

Standard Error

Standardized

beta

P

95%-CI

Model 1

 Intercept

43.95

0.77

 

< 0.001

42.44; 45.46

 Outdoor play

  Low (<  1 h day)

0 (Ref)

    

  Medium (1–2 h/day)

9.81

1.14

0.20

< 0.001

7.56; 12.06

  High (≥2 h/day)

14.70

1.22

0.27

< 0.001

12.32; 17.09

Model 2

 Intercept

93.07

2.81

 

< 0.001

87.55; 98.59

 Outdoor play

  Low (<  1 h day)

0 (Ref.)

    

  Medium (1–2 h/day)

0.85

1.09

0.02

0.434

−1.29; 2.99

  High (≥2 h/day)

3.87

1.20

0.07

0.001

1.53; 6.22

 Age (years)

−3.08

0.15

−0.43

< 0.001

−3.37; −2.79

 Sex

  Male

0 (Ref.)

    

  Female

−10.85

0.88

−0.23

< 0.001

− 12.58; −9.11

 BMI

  Normal weight

0 (Ref.)

    

  Underweight

−0.50

1.52

−0.01

0.744

−3.49; 2.49

  Overweight

−2.96

1.31

−0.04

0.024

−5.53; −0.38

  Obese

−5.31

2.30

−0.04

0.021

−9.82; −0.80

 Socio-economic status

  Low

0 (Ref.)

    

  Middle

1.10

1.69

0.02

0.514

−2.22; 4.42

  High

3.62

1.83

0.07

0.047

0.04; 7.20

  1. Model 1: Unadjusted model; Model 2: Adjusted model with the socio-demographic predictors age, sex, BMI, and socio-economic status. Abbreviations: CI = confidence interval; BMI = body mass index