Kraus Eva-Maria, Rommel Natalie, Stoll Lisa H, Oettinger Andreas, Vogel Adam P, Synofzik Matthis
Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.
Therapiezentrum, University Hospital Tübingen, Tübingen, Germany.
Dysphagia. 2018 Aug;33(4):431-440. doi: 10.1007/s00455-017-9872-5. Epub 2018 Jan 8.
The SWAL-QOL questionnaire is a common tool for evaluating patients' dysphagia-specific quality of life. A validated German version is not available. This study aimed to establish a German version of the SWAL-QOL (G-SWAL-QOL) using a standardized translation procedure and to systematically evaluate its psychometric properties. The original SWAL-QOL was translated into German following international translation guidelines. A pilot study (45 subjects) confirmed comprehensibility of the G-SWAL-QOL. A consecutive series of 158 subjects (103 patients with dysphagia; 55 healthy controls) was then recruited to assess validity and reliability of the G-SWAL-QOL. Construct validity was analyzed through a correlation analysis with both (i) the Anderson Dysphagia Inventory (ADI-D) and (ii) the Short Form 36 (SF-36). Internal consistency and test-retest reliability were evaluated to determine reliability. All questions of the G-SWAL-QOL were comprehensible, except one which was subsequently revised. Construct validity of the G-SWAL-QOL was demonstrated by moderate to high correlations with the ADI-D (Spearman's rho 0.36 - 0.88). The G-SWAL-QOL was able to differentiate between patients with dysphagia and healthy controls (p < 0.001) and was sensitive to disease severity measured by different food textures. Reliability of the G-SWAL-QOL was good to excellent for both internal consistency (Cronbach's α > 0.7 for all domains, except eating desire [α = 0.69]) and test-retest reliability (Spearman's rho ≥ 0.68 for all domains; ICC > 0.8 for all domains). The G-SWAL-QOL is a valid and reliable measuring tool for dysphagia-specific quality of life in German-speaking persons.
SWAL-QOL问卷是评估患者吞咽困难特异性生活质量的常用工具。目前尚无经过验证的德文版本。本研究旨在采用标准化翻译程序建立SWAL-QOL的德文版本（G-SWAL-QOL），并系统评估其心理测量特性。按照国际翻译指南将原始的SWAL-QOL翻译成德文。一项预试验（45名受试者）证实了G-SWAL-QOL的可理解性。随后招募了连续的158名受试者（103名吞咽困难患者；55名健康对照）来评估G-SWAL-QOL的效度和信度。通过与（i）安德森吞咽困难量表（ADI-D）和（ii）简明健康调查问卷36项版本（SF-36）的相关性分析来分析结构效度。评估内部一致性和重测信度以确定信度。除一个问题随后进行了修订外，G-SWAL-QOL的所有问题均可理解。G-SWAL-QOL与ADI-D的相关性为中度至高度（斯皮尔曼等级相关系数0.36 - 0.88），证明了其结构效度。G-SWAL-QOL能够区分吞咽困难患者和健康对照（p < 0.001），并且对不同食物质地所测量的疾病严重程度敏感。G-SWAL-QOL在内部一致性（所有领域的克朗巴赫α系数> 0.7，除进食欲望领域[α = 0.69]外）和重测信度（所有领域的斯皮尔曼等级相关系数≥ 0.68；所有领域的组内相关系数> 0.8）方面的信度均良好至优秀。G-SWAL-QOL是一种用于评估德语人群吞咽困难特异性生活质量的有效且可靠的测量工具。
