De Meester, Femke; Van Dyck, Delfien; De Bourdeaudhuij, Ilse - In: Social Science & Medicine 81 (2013) C, pp. 1-9
psychosocial factors using data from the Belgian Environmental PA Study in Youth (BEPAS-Y). BEPAS-Y recruited adolescents from 32 …–15 years; 49.4% boys) completed a survey measuring socio-demographic and psychosocial factors and wore an accelerometer for …