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Table 4 Spanish EYTO participation, schedule of enrolment, interventions and assessment

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

  Study period
  Enrolment Allocation Post-allocation
  Phase 1 Phase 2 Phase 3
Timepoint -t1 a0 t1 t2 t3 t4 t5 t6
  May 2014(after CEIC approval) May 2014 May 2014 May 2014 May 2014 September 2014 September 2014 October 2014
  High-Schools of low income in Reus are included in this phase. 4 high-school are randomly chosen, 2 in the intervention and 2 in the control group Control High-school meeting, Separate Intervention high-school meeting and 5 ACC selection Social marketing, health promotion and communication training for 5 ACCs Each participant answered the HBSC Survey. Implementation of challenges by the 5 ACCs with help of stakeholders for their peers. Preparation of the ACC presentation of the first academic Spanish intervention at the EYTO meeting in London. Meeting of 5 ACCs from the 4 EYTO participating countries in London to pool designed activities and exchange ideas. Successful intervention activities can be re-implemented.
  Randomisation is performed.    Design of the intervention. Information and informed consent signed Implementation of interventions by the 5 ACCs for their peers in high-school for 12 weeks.    
Enrolment: 360–400 adolescents from low-income neighbourhoods.       
Eligibility screen X   X      
Informed consent         
[List other procedures]         
Allocation 180–200 from intervention group and 180–200 from control group       
Intervention    Training of 5 ACCs to design activities   HBSC Survey Implementation of activities during 12-week period Implementation of social event challenges in the community and local markets for their peers   Evaluate the activities performed during 12-week period (1st academic year)
Control    This group did not receive any interventions   HBSC Survey    
Assessments: List baseline variables X X X     X X
List primary and secondary outcome variables for 200 participants in the intervention and 200 participants in the control group    Fruit and vegetable consumption, breakfast consumption, physical activity practice and sedentary behaviours.      
Study period
  Post-allocation Close-out September 2015   
  Phase 4 Phase 5    
Timepoint t7 t8 t9 t10 t11 t12   
  November 2014 February 2015 Mar 2015 Sept 2015 Sept 2015 Sept 2015   
  Activities re-implemented by 5 ACCs for their peers in the intervention group high-schools during a 12-week period (2nd academic year) Challenges designed by the 5 ACCs for their peers with stakeholder help Preparation of the presentation on the Spanish intervention for the EYTO meeting in Spain Meeting of 5 ACCs from the 4 EYTO participating countries in Reus, Spain. Report of intervention challenges to the 4 EYTO countries and web presentation and analysis of data. EYTO Final report including intervention challenges and Results of lifestyle outcomes   
Interventions:         
Intervention Implementation of activities during a 12-week period (2nd academic year) HBSC Survey Intervention implementation       
Control   HBSC Survey       
Assessments:    X X     
List primary and secondary outcome variables         
for 200 participants in the intervention and         
200 participants in the control group   February 2015, at the end of intervention   End of the participation of the 5 ACCs Fruit and vegetable consumption.    
      Physical activity Practice. Sedentary behaviours.