The "11 for Health in Denmark" intervention in 10- to 12-year-old Danish girls and boys and its effects on well-being-A large-scale cluster RCT.
Mads MadsenAnne-Marie ElbeEsben Elholm MadsenGiorgios ErmidisKnud RyomJohan Michael WikmanRune Rasmussen LindMalte Nejst LarsenPeter KrustrupPublished in: Scandinavian journal of medicine & science in sports (2020)
The intervention program had a positive between-group effect on physical well-being in girls, whereas the change was not significant in boys. The overall scores for peers and social support improved during the intervention period, but no subgroup differences were found.