“…A summary of the sample characteristics, study design, and findings of included studies is shown in Table 4 (and Appendix S5). Five studies were conducted in the USA, 25,28,34,37,39 five studies in Australia, 24,26,27,35,38 one in Norway, 33 two studies in the Netherlands, 29,31 one in Korea, 32 and two in Canada. 30,36 Three initiatives were implemented exclusively in primary schools; 24,35,38 eight initiatives were implemented across a combination of primary, middle, and high schools; [25][26][27]30,32,33,36,37 and five initiatives were implemented exclusively in high schools.…”