Skip to main content

Table 4 Stepwise multiple regression analysis academic performance predicted by α- and γ-tocopherol, total antioxidant capacity, body mass index, and physical activity of study participants (n = 120)

From: Association of physical activity, vitamin E levels, and total antioxidant capacity with academic performance and executive functions of adolescents

  Academic achievement Executive function
Β R2 β R2
Age 0.025* 0.421 0.312** 0.751
Gender 0.051*   0.055**  
BMI (kg/m2) −0.041*   −0.035**  
α-tocopherol (mg/L) 0.071*   0.085**  
γ-tocopherol (mg/L) 0.021*   0.028**  
TAC (nmol /μL) 0.048*   0.065**  
Physical activity score 0.092*   0.049**  
  1. Estimated standardized regression coefficients (β) and variance explained (R2) are presented, * p < 0.05; ** p < 0.01