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J Cutan Med Surg. 2010 Jul-Aug;14(4):156-60.

Development and validation of a Scale for Acne Scar Severity (SCAR-S) of the face and trunk.

Author information

1
University of Western Ontario, London, ON. jerrytan@bellnet.ca

Abstract

BACKGROUND:

scarring is an important component of overall acne severity, but there are no global scales for its evaluation inclusive of the face and trunk.

OBJECTIVE:

our objective was to develop a global scale for acne scar severity inclusive of the trunk and the face.

METHODS:

a six-category global severity scale (SCAR-S) was developed for assessment of acne scarring at each of the face, chest, and back. We evaluated SCAR-S against acne severity and patient-reported scar severity.

RESULTS:

of 973 subjects, 73% reported acne scarring. Self-assessment of scarring was associated with facial SCAR-S and overall SCAR-S scores (p < .001, r = .31 and .30, respectively). Acne scarring was observed at the face in 87%, the back in 51%, and the chest in 38%. Clinically relevant scarring (mild or greater) at each of these regions was 55%, 24%, and 14%, respectively. Acne severity correlated with SCAR-S (p < .001) for the back (r = .612), the chest (r = .548), and the face (r = .514). Acne duration correlated with patient-reported severity of scarring (r = .244) and overall SCAR-S scores (r = .152). Clinically relevant scarring increased with acne duration.

CONCLUSION:

SCAR-S is a practical, validated, global system for acne scar evaluation and is clinically relevant in overall severity grading of acne.

PMID:
20642983
DOI:
10.2310/7750.2010.09037
[Indexed for MEDLINE]

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