Department of Nursing, Gunma Prefectural College of Health Sciences, 323-1 Kamioki-machi, Maebashi, Gunma, 371-0052, Japan.
Department of Nursing, Gunma University Graduate School of Health Sciences, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8514, Japan.
Eur J Oncol Nurs. 2019 Aug;41:120-125. doi: 10.1016/j.ejon.2019.05.007. Epub 2019 Jun 3.
This study developed a comprehensive measurement tool for assessing dyspnea in cancer patients and examined its reliability and validity.
This cross-sectional study included 239 cancer patients with awareness of cancer-related dyspnea from outpatient/inpatient wards of six general hospitals in Japan. Items for the Total Dyspnea Scale for Cancer Patients (TDSC) were developed based on qualitative research and a literature review on patients with dyspnea. Ten cancer experts confirmed the scale's content validity. Factor analysis established construct validity. Internal consistency was analyzed by Cronbach's α. Study variables were the effects of dyspnea, worry, and quality of life.
Factor analysis identified 2 factors (11 items): effects on "daily living activities and psychology" and on "social life." Cronbach's α of the whole scale was 0.952 (p < 0.01), confirming high reliability. The scale showed high correlation with existing measures. TDSC can comprehensively and multidimensionally evaluate cancer-related dyspnea.
The TDSC consists of 11 items within two factors. Cronbach's α coefficient of the scale was 0.952 in this study, and thus, an acceptable level of reliability was confirmed. In addition, reference-related validity and discriminant validity were verified and confirmed. In future clinical practice, this scale can be utilized as a useful tool for comprehensively and multidimensionally evaluating cancer-related dyspnea.
本研究开发了一种全面的癌症患者呼吸困难评估工具，并对其信度和效度进行了检验。
本横断面研究纳入了 239 名来自日本 6 家综合医院门诊/住院病房对癌症相关性呼吸困难有认知的癌症患者。基于对呼吸困难患者的定性研究和文献回顾，制定了癌症患者呼吸困难综合量表（TDSC）的条目。10 名癌症专家对量表的内容效度进行了确认。采用因子分析建立了结构效度。采用 Cronbach's α 分析进行内部一致性检验。研究变量为呼吸困难的影响、担忧和生活质量。
因子分析确定了 2 个因子（11 个条目）：对“日常生活活动和心理”的影响和对“社会生活”的影响。整个量表的 Cronbach's α 为 0.952（p<0.01），表明信度较高。该量表与现有测量工具高度相关。TDSC 可以全面、多维地评估癌症相关性呼吸困难。
TDSC 由两个因子的 11 个条目组成。本研究中该量表的 Cronbach's α 系数为 0.952，因此确认了可接受的信度水平。此外，还验证并确认了参考相关的有效性和判别有效性。在未来的临床实践中，该量表可以作为一种全面、多维评估癌症相关性呼吸困难的有用工具。
