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Psychometric properties of the Czech Integrated Palliative Outcome Scale: reliability and content validity analysis
BMC Palliative Care ( IF 2.5 ) Pub Date : 2020-03-25 , DOI: 10.1186/s12904-020-00552-x
Karolina Vlckova , Eva Hoschlova , Eva Chroustova , Martin Loucka

Outcome measurement is an essential part of the evaluation of palliative care and the measurements need to be reliable, valid and adapted to the culture in which they are used. The Integrated Palliative Outcome Scale (IPOS) is a widely used tool for assessing personal-level outcomes in palliative care. The aim of this study was to provide Czech version of IPOS and assess its psychometric properties. Patients receiving palliative care in hospice or hospitals completed the IPOS. The reliability of Czech IPOS was tested with Cronbach alpha (for internal consistency), the intraclass correlation coefficient for total IPOS score and weighted Kappa (for test-retest reliability of individual items). Factor analysis was used for elucidating the construct (Exploratory Factor Analysis). Convergent validity was tested with correlation analysis (Spearman correlation) in a part of the sample, who completed also the Edmonton Symptom Assessment System (ESAS) and the Palliative Performance Scale (PPS). The sample consisted of 140 patients (mean age 72; 90 women; 81% oncological disease). The Cronbach alpha was 0.789; intraclass correlation was 0.88. The correlations of IPOS with ESAS was R = 0.4 and PPS R = − 0.2. Exploratory factor analysis revealed a 2-factor solution on our data. The first factor covers emotional and information needs and the second factor covers physical symptoms. Czech IPOS has very good reliability regarding both internal consistency and test-retest reliability. Together with an item analysis results, we can conclude that the Czech adaptation of the tool was successful. The convergent validity needs to be assessed on the larger sample and the proposed 2-factor internal structure of the questionnaire has to be confirmed by using CFA.

中文翻译:

捷克综合姑息结果量表的心理计量学性质:可靠性和内容效度分析

结果测量是姑息治疗评估的重要组成部分,并且测量必须可靠,有效并适应所使用的文化。综合姑息治疗结果量表(IPOS)是评估姑息治疗中个人水平结果的一种广泛使用的工具。这项研究的目的是提供IPOS的捷克语版本并评估其心理计量特性。在临终关怀或医院接受姑息治疗的患者完成了IPOS。捷克IPOS的可靠性通过Cronbach alpha(用于内部一致性),组内相关系数(用于IPOS总分)和加权Kappa(用于单个项目的重测可靠性)进行了测试。因子分析用于阐明构建体(探索性因子分析)。在样本的一部分中,通过相关分析(Spearman相关)测试了收敛效度,该样本还完成了埃德蒙顿症状评估系统(ESAS)和姑息表现量表(PPS)。样本包括140名患者(平均年龄72岁; 90名女性; 81%肿瘤疾病)。克朗巴赫(Cronbach)α为0.789;组内相关系数为0.88。IPOS与ESAS的相关性为R = 0.4和PPS R = − 0.2。探索性因素分析揭示了我们数据的两因素解决方案。第一个因素涉及情绪和信息需求,第二个因素涉及身体症状。捷克IPOS在内部一致性和重测可靠性方面都具有非常好的可靠性。结合项目分析结果,我们可以得出结论,捷克对该工具的改编是成功的。
更新日期:2020-04-22
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