Quality of Life and Mental Health in Children and Adolescents during the First Year of the COVID-19 Pandemic

results of a two-wave nationwide population-based study

Ravens-Sieberer, Ulrike | Kaman, Anne | Erhart, Michael | Otto, Christiane | Devine, Janine | Löffler, Constanze | Hurrelmann, Klaus | Bullinger, Monika | Barkmann, Claus | Siegel, Nico A. | Simon, Anja M. | Wieler, Lothar H. | Schlack, Robert | Hölling, Heike