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Table 1 Schedule of previous intervention implementation and study follow-up outcome measures

From: Long-term health outcomes of adolescent character strength interventions: 3- to 4-year outcomes of three randomized controlled trials of the Shamiri program

Time point

STUDY PERIOD

Enrolment

Allocation

Post-allocation

Close-out

Jun 2018

Jun-Jul 2019

May 2021

Jun 2018

Jul 2019

May 2021

Jun 2018

Jul-Aug 2019

May-Jul 2021

Jan 2022

Sep-Oct 2022

Aug-Oct 2024

Nov 2024

ENROLMENTa

 Eligibility screen

x

x

x

          

 Informed consent

x

x

x

      

x

x

x

x

 Allocation

   

x

x

x

       

INTERVENTIONSa

 Combined Shamiri

      

x

x

x

    

 Growth

        

x

    

 Gratitude

        

x

    

 Values

        

x

    

 Study skills control

      

x

x

x

    

ASSESSMENTSb

 Demographic characteristics

         

x

x

x

x

 Depression, anxiety, perception of social support

         

x

x

x

x

 Gratitude, purpose, perceived and secondary control, wellbeing, character strengths

         

x

x

x

x

 Anthropometric measures

         

x

x

x

x

 HIV risk behaviors and status

          

x

x

x

 Household wealth

         

x

x

x

x

 Intimate partner violence

          

x

x

x

 Alcohol and substance use

         

x

x

x

x

 Sleep quality

         

x

x

x

x

 Pregnancy and children

          

x

x

x

  1. aEnrolment and interventions have already taken place as part of our previous three trials. This diagram reflects the timeline of participants in those studies
  2. bAcademic grades will be collected as they become available, with grades being collected pre-and post-follow-up visit