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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
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