ECCA grading scale: an original validated acne scar grading scale for clinical practice in dermatology.

B Dreno, A Khammari, N Orain, C Noray, C Mérial-Kieny, S Méry, T Nocera

Dermatology : International Journal for Clinical and Investigative Dermatology 2007

INTRODUCTION: The ECCA grading scale (échelle d'évaluation clinique des cicatrices d'acné) is a tool designed to help dermatologists to assess the severity of acne scars and to standardize the discussions about the treatments of scars.

METHODS: We developed an acne scar clinical grading scale called ECCA, which consists of 6 items designed to assess easily and quickly the severity of acne scars by a global score. The interobserver reliability of the ECCA grading was statistically validated.

RESULTS: The statistical analysis showed the interinvestigator reliability of the ECCA grading scale among 7 dermatologists who used it on the same group of 10 acne patients.

CONCLUSION: ECCA is a new tool which will now be available for dermatologists to use in their everyday practice and for clinical trials evaluating the efficacy of treatments on acne scars.

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