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Table 1 Time points for assessment of outcomes

From: Efficacy of acupuncture in improving the symptoms and the quality of life of patients with moderate or severe acne vulgaris: study protocol for a randomized controlled trial

Outcome measures

Enrollment and allocation

Treatment

Follow-up

Baseline

Week 1

Week 2

Week 3

Week 4

Week 16

Week 28

Skindex-16 total score

X

   

X

X

X

Skindex-16 subscales score

X

   

X

X

X

DLQI total score

X

   

X

X

X

TLC

X

   

X

X

X

ILC

X

   

X

X

X

IVAS score

X

   

X

X

X

PVAS score

X

   

X

X

X

Blinding assessment

    

X

  

Expectation

X

      

Safety assessment

 

X

X

X

X

  
  1. Abbreviations: DLQI Dermatology Life Quality Index scale, ILC Inflammatory lesion count, IVAS Itch assessment with visual analogue scale, PVAS Pain assessment with visual analogue scale, TLC Total lesion count