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Table 1 Schedule of enrollment, interventions, and outcome assessment

From: The efficacy of different treatment approaches for pediatric OSAHS patients with mandibular retrognathia: study protocol for a multicenter randomized controlled trial

Action/timepoint

Enrollment

Baseline survey

(M 0)

Randomization

Treatment

Follow-up (M 7)

Follow-up (M 12)

Follow-up (M 24)

Informed consent

⚪

      

Demographic characteristics

⚪

      

Medical history

⚪

      

Physical examination

⚪

      

Questionnaire (OSA-20)

⚪

      

Lateral cephalometrics

 

⚪

  

⚪

⚪

⚪

Polysomnogram

 

⚪

  

⚪

⚪

⚪

Confirm suitability for study

 

⚪

     

Allocation

  

⚪

    

Drug treatment

   

⚪

   

Surgical treatment

   

⚪

   

Orthodontic treatment

   

⚪

   

Surgery and postoperative orthodontic treatment

   

⚪

   

Assessment

 Symptom changes

    

⚪

⚪

⚪

 Questionnaire (OSA-20)

 

⚪

  

⚪

⚪

⚪

 Cephalometric measurements

 

⚪

  

⚪

⚪

⚪

 Morphologic analysis of UA

 

⚪

  

⚪

⚪

⚪

 Polysomnogram

 

⚪

  

⚪

⚪

⚪

 Safety assessment

    

⚪

⚪

⚪