Cabrera Samantha, Chinniah Niranthari, Lock Nannette, Cains Geoffrey D, Woods Jane
Faculty of Medicine, University of New South Wales, Sydney, New South Wales, Australia.
Australas J Dermatol. 2015 May;56(2):100-2. doi: 10.1111/ajd.12280. Epub 2015 Mar 5.
With the evolving emphasis on evidence-based practice, the use of reliable clinical scales forms an important foundation for clinical assessment. The psoriasis area and severity index (PASI) is the most widely used tool for the measurement of psoriasis severity; however, there has been some debate over the potential reproducibility of PASI scoring.
To determine the inter-observer reliability of the PASI at a large tertiary hospital with a psoriasis treatment centre.
In total, 34 patients who were due for their 3-monthly follow up at a psoriasis treatment centre were independently evaluated by five clinical staff (observers) from the Department of Dermatology. Each observer independently determined the PASI score of each patient and the inter-observer reliability coefficient was determined by employing intra-class correlation coefficients (ICC).
There was a significant degree of concordance among the PASI scoring of observers (ICC = 0.804; CI 95%: 0.706-0.883).
Our cross-sectional study suggests that the PASI provides a reproducible method of assessing psoriasis severity among patients seen in a busy dermatology clinic at a large tertiary hospital.
随着对循证医学实践的日益重视，使用可靠的临床量表构成了临床评估的重要基础。银屑病面积和严重程度指数（PASI）是测量银屑病严重程度最广泛使用的工具；然而，对于PASI评分的潜在可重复性存在一些争议。
在一家设有银屑病治疗中心的大型三级医院确定PASI的观察者间信度。
共有34名预定在银屑病治疗中心进行3个月一次随访的患者由皮肤科的五名临床工作人员（观察者）进行独立评估。每位观察者独立确定每位患者的PASI评分，并采用组内相关系数（ICC）确定观察者间信度系数。
观察者的PASI评分之间存在显著程度的一致性（ICC = 0.804；95%置信区间：0.706 - 0.883）。
我们的横断面研究表明，PASI为评估大型三级医院繁忙皮肤科门诊患者的银屑病严重程度提供了一种可重复的方法。
