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Table 1 Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) figure

From: The effect of alcohol strength on alcohol consumption: a randomised controlled cross-over pilot trial

Time point

Study period

Enrolment

Allocation

Post-allocation

Close-out

≥ 24 h before study session 1

When participant arrives for study session 1

Study session 1

End of study session 1

When participant arrives for study session 2: 4 weeks after study session 1

Study session 2

End of study session 2

Approx 48 h after the final study session at the venue

Enrolment

 Eligibility screen

X

       

 Consent

 

X

      

 Allocation

 

X

      

Interventions

 Bud Light

  

X

  

O

  

 Becks

  

O

  

X

  

Assessments

 BrAC reading

 

X

 

X

X

 

X

 

 Time recorded

 

X

 

X

X

 

X

 

 UK units of alcohol consumed counted

   

X

  

X

 

 Questionnaire

   

X

  

X

 

 Debrief email/letter

       

X