Acne grading system proposed

  • Bernardis E & al.
  • JAMA Dermatol
  • 29/01/2020

  • Emily Willingham, PhD
  • Clinical Essentials
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Takeaway

  • These researchers proposed an acne severity grading system based on real-life clinical experience that correlates well with treatment choices.

Why this matters

  • These authors say that the proposed system would reformulate the clinical approach to rating acne severity and determining treatment.

Key results

  • Scale is based on visual features of acne from 145 patient images, rated by experienced pediatric dermatologists.
  • Using a specific set of images, they developed a score with tight agreement.
  • They narrowed down treatment intensities to 5 severity groups (for example, moderate/moderate-less severe were combined into 1 group).
  • Publication presents the proposed 9-point scale, which involves counting active lesions and evaluating for secondary changes.

Study design

  • Study images from 150 real-life patients diagnosed in clinic and covering ages 0-21 years.
  • Acne types: 10% severe.
  • Funding: Children’s Hospital of Philadelphia; NIH; Pfizer Fellowship grant.

Limitations

  • Clinical images from a single center.
  • Needs validation in a separate population.