No changes in adolescent's sedentary behaviour across Europe between 2002 and 2017.

The SB prevalence in European adolescents is extremely high (76.8% in 2017) with no differences between girls and boys. No significant improvements have been seen between 2002 and 2017. Eurobarometer should increase the adolescents' sample to make possible benchmarking comparisons among the EU countries and extend the survey to the younger children population.