Gender
Behaviours related to dietary habits and physical activity in boys and girls were compared. While there was no overall gender effect on daily breakfast consumption, girls were less likely to consume unhealthy foods than boys post intervention. Physical activity frequency also differed between girls and boys after the intervention, whereby overall, girls were 23 % less likely than boys to engage in physical activities outside school twice or more per week. In terms of knowledge and self-efficacy scores, girls were less likely to improve their knowledge scores at post-intervention than boys in the total population. Meanwhile, changes in self-efficacy scores did not differ between boys and girls.