Multiple linear regression analysis evaluating the association between systolic blood pressure according to independent variables for each study, in boys.

Beta coefficient and their respective confidence intervals 95% (95% CI).
*This analysis was adjusted for potential confounders: age, socioeconomic status, parental education, regular tobacco smoking, body mass index and waist circumference.
**420 boys were excluded because they met the inclusion criteria.
MPA = moderate physical activity.
VPA = vigorous physical activity.
MVPA = moderate and vigorous physical activity.
PA = physical activity.
SB = sedentary behavior.
Significant associations are in bold.