Birgisson, Ottar; Eriksen, Hege R.; Hysing, Mari; Johannsson, Erlingur; Gestsdottir, Sunna
(2024-05-15)
The aim of the study was to compare the mental health and cardiorespiratory fitness (CRF) of adolescents in two cross-sectional cohorts, one measured in 2003 and the other in 2015, both at age 15 and across sexes. The study also sought to estimate the ...