Association of screen time and physical activity with health-related quality of life in Iranian children and adolescents

Health-related quality of life (HRQoL) is a multidimensional concept with significant effects and children and adolescence; while physical activity (PA) and screen time (ST) have been suggested as its probable predictors. Present study aims to investigate the association of PA, ST and their combination, with HRQoL in a nationally-representative sample of Iranian children and adolescents. As for the estimated sample size, 25,000 students aged...