BACKGROUND Measuring functional status in palliative care may help clinicians to assess a patient's prognosis, recommend adequate therapy, avoid futile or aggressive medical care, consider hospice referral, and evaluate provided rehabilitation outcomes. An optimized, widely used, and validated tool is preferable. The Palliative Performance Scale Version 2 (PPSv2) is currently one of the most commonly used performance scales in palliative settings. The aim of this study is the psychometric validation process of a Polish translation of this tool (PPSv2-Polish). METHODS Two hundred patients admitted to a free-standing hospice were evaluated twice, on the first and third day, for test-retest reliability. In the first evaluation, two different care providers independently evaluated the same patient to establish inter-rater reliability values. PPSv2-Polish was evaluated simultaneously with the Karnofsky Performance Score (KPS), Eastern Cooperative Oncology Group (ECOG) Performance Status (ECOG PS), and Barthel Activities of Daily Living (ADL) Index, to determine its construct validity. RESULTS A high level of full agreement between test and retest was seen (63%), and a good intra-class correlation coefficient of 0.85 (P < 0.0001) was achieved. Excellent agreement between raters was observed when using PPSv2-Polish (Cohen's kappa 0.91; P < 0.0001). Satisfactory correlations with the KPS and good correlations with ECOG PS and Barthel ADL were noticed. Persons who had shorter prognoses and were predominantly bedridden also had lower scores measured by the PPSv2-Polish, KPS and Barthel ADL. A strong correlation of 0.77 between PPSv2-Polish scores and survival time was noted (P < 0.0001). Moderate survival correlations were seen between KPS, ECOG PS, and Barthel ADL of 0.41; - 0.62; and 0.58, respectively (P < 0.0001). CONCLUSION PPSv2-Polish is a valid and reliable tool measuring performance status in a hospice population and can be used in daily clinical practice in palliative care and research.

中文翻译：

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姑息表现量表：波兰临终关怀机构的跨文化适应和心理测量验证。

背景技术测量姑息治疗中的功能状态可以帮助临床医生评估患者的预后，推荐适当的治疗，避免无效或积极的医疗护理，考虑临终关怀转诊，并评估所提供的康复结果。最好使用经过优化、广泛使用且经过验证的工具。姑息治疗性能量表版本 2 (PPSv2) 是目前姑息治疗中最常用的性能量表之一。本研究的目的是对该工具的波兰语翻译（PPSv2-Polish）进行心理测量验证过程。方法 入住独立临终关怀医院的 200 名患者在第一天和第三天接受了两次重测可靠性评估。在第一次评估中，两名不同的护理提供者独立评估同一名患者，以确定评估者间的可靠性值。PPSv2-Polish 与卡诺夫斯基表现评分 (KPS)、东部肿瘤合作组 (ECOG) 表现状态 (ECOG PS) 和 Barthel 日常生活活动 (ADL) 指数同时进行评估，以确定其结构有效性。结果 测试和复测之间的完全一致程度很高（63%），并且组内相关系数达到了 0.85（P < 0.0001）。使用 PPSv2-Polish 时，观察到评估者之间的一致性非常好（Cohen's kappa 0.91；P < 0.0001）。注意到与 KPS 具有令人满意的相关性，并且与 ECOG PS 和 Barthel ADL 具有良好的相关性。预后较短且主要卧床不起的人的 PPSv2-Polish、KPS 和 Barthel ADL 测量得分也较低。PPSv2-Polish 评分与生存时间之间存在 0.77 的强相关性 (P < 0.0001)。KPS、ECOG PS 和 Barthel ADL 之间存在中等生存相关性，为 0.41；- 0.62；和 0.58（P < 0.0001）。结论 PPSv2-Polish 是衡量临终关怀人群表现状态的有效且可靠的工具，可用于姑息治疗和研究的日常临床实践。