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Table 4 Results of hierarchical regression analyses explaining moderate-to-vigorous physical activity in girls (n = 145)

From: The relative influence of demographic, individual, social, and environmental factors on physical activity among boys and girls

 

Model 1

Model 2

Full Model

Blocks of variables

Standardized Beta

Demographic

   

Age, years

-0.05

-0.01

0.01

Race/ethnicity

-0.09

-0.06

-0.04

Parent education

0.07

0.07

0.08

Reduced price lunch

0.08

0.09

0.01

BMI z-score

0.01

0.04

0.04

Physical maturation

-0.03

-0.02

-0.02

Individual

   

Barriers

 

-0.20**

-0.16*

Environmental

   

Distance to rec center1

  

-0.07

Distance to school attended1

  

-0.20**

Walkability index2

  

0.17*

R 2

0.02

0.06

0.15

Adj R2

-0.02

0.01

0.09

Δ Adj R2

 

0.03

0.08

Model significance

F (6, 134) = 0.49;

P = 0.81

F (7, 133) = 1.17;

P = 0.32

F (10, 128) = 2.25;

P = 0.02

  1. *P < 0.10, **P < 0.05, ***P < 0.001
  2. BMI = body mass index
  3. 1Distance in kilometers
  4. 2Sum of z-scores of residential, intersection, and employment density variables