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J Eur Acad Dermatol Venereol. 2011 Jan;25(1):43-8. doi: 10.1111/j.1468-3083.2010.03685.x.

Development and evaluation of a Global Acne Severity Scale (GEA Scale) suitable for France and Europe.

Author information

1
Department of Cancero-Dermatology, Hôtel Dieu, Nantes Cedex, France. brigitte.dreno@wanadoo.fr

Abstract

BACKGROUND AND OBJECTIVE:

Many acne grading methods exist; however, there is no agreed-upon standard. Our objective was to create and validate a reproducible acne assessment scale for rating the severity of juvenile facial acne suitable for use in France and Europe.

METHODS:

The scale we created described the different types of acne lesions in a manner similar to global assessment scales used in clinical trials. The scale was then validated by seven expert dermatologists in the field of acne [the Global Evaluation Acne (GEA) group] first on 34 photographic cases of Caucasian acne patients and second by clinical examination of 22 acne patients.

RESULTS:

There was good agreement in Investigators' assessments of acne both on photographs and patients (R = 0.8057; P < 0.0001, and R = 0.8437; P = 0.0015).

CONCLUSION:

The GEA Scale is a global scale validated both on photographs and acne patients which can be used either in clinical research or by the dermatologist in his office.

[Indexed for MEDLINE]

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