1.1. Analysis.

Comparison 1: PA programme vs no PA programme, Outcome 1: Physical activity participation: all data

Physical activity participation: all data
Study	Study population	Intervention group	Control Group	Measurement period	Overall effect	Comment
Children: before and after school programme
Jago 2015	Year 7 female students	After‐school dance classes	Provided data only	20 weeks	Between group difference in % meeting 60 min/day of MVPA: −1.11% (95% CI −1.68, −0.73)
				1 year	Between group difference in % meeting 60 min/day of MVPA: −1.18% ( (95% CI −1.82, 0.76)
Children: schooltime PA
Kobel 2014	Pupils at primary school, grades 1 and 2	Teacher training, PA education, and active breaks	No intervention	1 year	Between‐group difference in % meeting 60 min/day of MVPA: 10.4% (not statistically significant) Intervention group: 54.7% Control group: 44.3%
Children: multi‐component interventions
Adab 2018	Year 1 students (aged 5 to 6 years)	30 min of additional MVPA on each school day, cooking workshops, a 6‐week healthy eating program, and information sheets for families	Ongoing year 2 health related activities and education resources, excluding topics related to healthy eating and PA	15 months	Between‐group difference in % meeting 60 min/day of MVPA: 0.005% (95% CI −0.101, 0.140)
				18 months	Between‐group difference in % meeting 60 min/day of MVPA: −0.067% (95% CI −0.165, 0.096)
Adolescents: multi‐component interventions
Andrade 2014	Grades 8 and 9 students	ACTIVITAL individual‐ and environmental‐based intervention	Standard curriculum	28 months	Between‐group difference in % meeting guidelines: 12.22% (P < 0.01) Intervention group: ‐5.87% Control: ‐18.09%
Harrington 2018	Female students in years 7 to 9, 11 to 14 years old	Support for PA, PE, and school sport culture and practices with the support of the Youth Sport Trust and a hub school	Continued with normal PA habits	7 months (midpoint)	Meeting guidelines: OR: 0.78 (0.23, 2.65)
				14 months	Meeting guidelines: OR: 0.65 (0.23, 1.85)