BACKGROUND Empathy is an important characteristic to possess for healthcare professionals. It has been found to improve communication between professionals and patients and to improve clinical health outcomes. The Jefferson Scale of Empathy (JSE) was developed to measure this quality and has been used extensively, and psychometrically appraised, with a variety of cohorts and in different cultural environments. However, no study has been undertaken to systematically examine the methodological quality of studies which have assessed psychometric factors of the JSE. This systematic review will examine the quality of published papers that have reported on psychometric factors of the JSE. METHODS A systematic review of studies which report on the psychometric properties of the JSE will be conducted. We will use a predefined search strategy to identify studies meeting the following eligibility criteria: original data is reported on for at least one of the psychometric measurement properties described in the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) Risk of Bias checklist, examines the JSE in a healthcare cohort (using the student, physician or health profession versions of the JSE), and is published from January 2001 and in the English language. Conference abstracts, editorials and grey literature will be excluded. Six electronic databases (Medline, EMBASE, PsychInfo, PubMed, Web of Science and CINAHL) will be systematically searched for articles meeting these criteria and studies will be assessed for eligibility by two review authors. The methodological quality of included papers will be examined using the COSMIN Risk of Bias checklist. DISCUSSION A narrative description of the findings will be presented along with summary tables. Recommendations for use of the JSE with various cohorts and circumstances will be offered which may inform future research in this field. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42018111412.

中文翻译：

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杰斐逊同理心量表的心理测量特性：COSMIN 系统审查协议。

背景技术同理心是医疗保健专业人员应具备的重要特征。人们发现它可以改善专业人员和患者之间的沟通并改善临床健康结果。杰斐逊同理心量表（JSE）是为了衡量这种品质而开发的，并已在不同群体和不同文化环境中得到广泛使用和心理测量评估。然而，尚未开展任何研究来系统地检验评估 JSE 心理测量因素的研究的方法学质量。本系统审查将检查已发表的有关 JSE 心理测量因素的论文的质量。方法将对报告 JSE 心理测量特性的研究进行系统回顾。我们将使用预定义的搜索策略来识别符合以下资格标准的研究： 报告至少一种心理测量属性的原始数据，该属性在基于共识的健康测量工具选择标准 (COSMIN) 中描述 偏差风险清单，检查医疗保健队列中的 JSE（使用 JSE 的学生、医生或健康专业版本），并于 2001 年 1 月以英语出版。会议摘要、社论和灰色文献将被排除在外。将系统地搜索六个电子数据库（Medline、EMBASE、PsychInfo、PubMed、Web of Science 和 CINAHL）以查找符合这些标准的文章，并将由两位综述作者评估研究的资格。纳入论文的方法学质量将使用 COSMIN 偏差风险检查表进行检查。讨论 对研究结果的叙述性描述将与汇总表一起呈现。将提供在不同群体和情况下使用 JSE 的建议，这可能会为该领域的未来研究提供信息。系统审查注册 PROSPERO CRD42018111412。