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Table 3 Schedule of enrolment, interventions and assessments

From: Preoperative Behavioural Intervention versus standard care to Reduce Drinking before elective orthopaedic Surgery (PRE-OP BIRDS): protocol for a multicentre pilot randomised controlled trial

Time point

Study period

Screening

Visit 1

6–8 weeks pre-surgery

Visit 2

1–2 weeks pre-surgery (intervention arm only)

Visit 3

1 and 3 days pre-surgery

Visit 4

Up to 5 days post-surgery

Visit 5

6 weeks post-surgery

Visit 6

6 months post intervention

Enrolment:

AUDIT C

X

      

 Expression of Interest

X

      

 Consent

 

X

     

 Randomisation

 

X

     

Interventions:

 Intervention

 

X

     

 Booster

  

X

    

 TAU

 

X

     

Assessments:

 AUDIT Baseline

 

X

     

 EQ-5D Baseline

 

X

     

 AUDIT Outcome

  

X

X

 

X

X

 EQ-5D Outcome

     

X

X

 WOMAC

 

X

  

X

  

 POMS

    

X

  

 Clavien-Dindo

    

X

  

 Interview

      

X