Clinique de Dermatologie, Hôpital Edouard Herriot, Lyon Cedex, France.
J Eur Acad Dermatol Venereol. 2010 Feb;24(2):196-8. doi: 10.1111/j.1468-3083.2009.03278.x. Epub 2009 May 27.
The three-grade acne classification (mild, moderate, severe) is widely used to define the licensed indications of acne treatments, and for therapeutic decision-making in clinical practice, but its reproducibility has never been assessed.
Ten photographs of facial acne were scored independently by eight experts using the three-grade acne classification. We conducted a descriptive analysis of the results, based on graphical representation of the scores for each photograph.
Inter-observer agreement on acne severity based on the three-grade acne classification was very poor.
The classical three-grade acne classification is poorly reproducible. A new rating tool accompanied by a clinical description of each severity level would be extremely useful.
三级痤疮分类（轻度、中度、重度）广泛用于定义痤疮治疗的许可适应证，并用于临床实践中的治疗决策，但从未评估其可重复性。
八位专家使用三级痤疮分类对十张面部痤疮照片进行独立评分。我们根据每张照片的评分图形表示，对结果进行描述性分析。
基于三级痤疮分类的痤疮严重程度的观察者间一致性非常差。
经典的三级痤疮分类可重复性差。一种新的评分工具，并附有每个严重程度级别的临床描述将非常有用。
