Henoch Ingela, Bergman Bengt, Gaston-Johansson Fannie
Faculty of Health and Caring Sciences, Göteborg University, Göteborg, Sweden.
J Pain Symptom Manage. 2006 Apr;31(4):353-61. doi: 10.1016/j.jpainsymman.2006.02.002.
The Cancer Dyspnea Scale (CDS) is a multidimensional measure of dyspnea experience, with three subscales related to sense of effort, sense of anxiety and sense of discomfort, and a total score. In this study, we evaluated the validity and reliability of a Swedish version, the CDS-S, in 99 patients with advanced lung cancer who were not receiving curative or life-prolonging treatments. Criterion-related validity was demonstrated by significant group differences in CDS-S scores when patients were stratified by dyspnea intensity, as measured by a visual analogue scale (VAS-D). Correlations between the total CDS-S score and other dyspnea scales varied between 0.63 and 0.68. Convergent validity was shown by comparing the CDS-S subscales with conceptually related measures of physical and emotional function and discomfort, and correlations ranged from 0.34 to 0.57. The CDS-S captured the psychological dimension of dyspnea better than did the VAS-D. Internal consistency of the CDS-S scales was confirmed by Cronbach's alpha coefficients ranging from 0.81 to 0.90. The CDS-S was well received by the patients and completed in 2 minutes. This study supports the CDS as a valid and reliable instrument to measure dyspnea experience in a palliative setting, well suited for use in research as well as in clinical practice.
癌症呼吸困难量表（CDS）是一种对呼吸困难体验的多维度测量工具，它有三个与用力感、焦虑感和不适感相关的子量表以及一个总分。在本研究中，我们评估了瑞典语版的CDS（即CDS-S）在99例未接受根治性或延长生命治疗的晚期肺癌患者中的有效性和可靠性。当根据视觉模拟量表（VAS-D）测量的呼吸困难强度对患者进行分层时，CDS-S评分存在显著的组间差异，这证明了与标准相关的有效性。CDS-S总分与其他呼吸困难量表之间的相关性在0.63至0.68之间。通过将CDS-S子量表与身体和情绪功能及不适感的概念相关测量指标进行比较，显示出收敛效度，相关性范围为0.34至0.57。CDS-S比VAS-D能更好地捕捉呼吸困难的心理维度。CDS-S量表的内部一致性通过Cronbach's alpha系数在0.81至0.90之间得到证实。患者对CDS-S接受度良好，且能在2分钟内完成填写。本研究支持CDS作为一种在姑息治疗环境中测量呼吸困难体验的有效且可靠的工具，非常适合用于研究以及临床实践。
