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

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 (1^st 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 (2^nd 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 (2^nd 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.