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Table 1 General study characteristics

From: A youth-led social marketing intervention to encourage healthy lifestyles, the EYTO (European Youth Tackling Obesity) project: a cluster randomised controlled0 trial in Catalonia, Spain

Arm High school information Assigned interventions Population Primary and secondary outcomes
Intervention group High-school A The intervention group will receive an intervention consisting of challenges designed by 5 ACCs. These activities must have social marketing criteria. High-school A Primary outcome: consumption of fruits and vegetables, physical activity practice, and TV/computer/game console use. Secondary outcomes: breakfast consumption, engagement with local recreation and obesity prevalence
The intervention group received challenges designed by ACCs that promote healthy lifestyles. Economically disadvantaged Students from high schools from low-income neighbourhoods, who are 13 to 16 years of age:
Size: 3 classes/level a) 3 to 5 ACCs
Public b) 80-100 adolescents
Reus
High-school B High-school B
Economically disadvantaged Students from high schools from low-income neighbourhoods, 2who are 13 to 16 years of age:
Size: 4 classes/level a) 2 to 5 ACCs
Public b) 80-100 adolescents
Reus
Control group High-school A No intervention is assigned for this group. High-school A The same outcomes were measured with the same tools and over the same time frame as in the intervention group.
The control group no received challenges to promote healthy lifestyles. Economically disadvantaged Students from high schools from low-income neighbourhoods, who are 13 to 16 years of age:
Size: 3 classes/level b) 80-100 adolescents
Public
Reus
High-school B High-school B
Economically disadvantaged Students from high schools from low-income neighbourhoods, who are 13 to 16 years of age:
Size: 4 classes/level b) 80-100 adolescents
Public
Reus