Department of Palliative Medicine, Tata Memorial Centre, Mumbai, Maharashtra, India.
Department of Palliative Medicine, Tata Memorial Centre, Mumbai, Maharashtra, India.
J Pain Symptom Manage. 2017 Nov;54(5):715-720.e1. doi: 10.1016/j.jpainsymman.2017.06.004. Epub 2017 Aug 8.
Assessment of dyspnea in patients with advanced cancer is challenging. Cancer Dyspnea Scale (CDS) is a multidimensional scale developed for the measurement of dyspnea. It is available only in Japanese, English, and Swedish and has not been validated before in the Indian languages.
The objective was to describe the process of validation and reliability testing of CDS in Indian advanced cancer patients.
This is a prospective observational study conducted in the palliative care clinic of a tertiary cancer center in Mumbai. The English version of CDS was translated into Indian languages-Hindi (CDS-H) and Marathi (CDS-M). One hundred twenty newly registered eligible patients (60 for CDS-H and 60 for CDS-M) were enrolled into the study consecutively. They were asked to fill CDS (translated version) and Visual Analogue Scale for dyspnea. Only baseline measures were used.
Validity was separately analyzed for CDS-H and CDS-M. The results showed good construct validity between CDS-H and CDS-M. Intersubscale correlation was done by calculating the Pearson's correlation coefficient (mean r = 0.64 and 0.764 for CDS-H and CDS-M, respectively). Convergent validity was calculated by computing the correlation of each factor with VAS-D scores and was found statistically significant (P < 0.001; average r ranging from 0.706 to 0.714). Reliability of the scale was determined by its internal consistency (Cronbach's alpha coefficient ranging from 0.716 to 0.879).
This study demonstrates that CDS-H and CDS-M are valid and reliable multidimensional scales, which can be used to assess dyspnea in patients with advanced cancer.
评估晚期癌症患者的呼吸困难具有挑战性。癌症呼吸困难量表（CDS）是一种多维量表，用于测量呼吸困难。它仅提供日语、英语和瑞典语版本，尚未在印度语言中进行验证。
本研究旨在描述 CDS 在印度晚期癌症患者中的验证和可靠性测试过程。
这是一项在孟买一家三级癌症中心姑息治疗诊所进行的前瞻性观察性研究。CDS 的英文版本被翻译成印度语言-印地语（CDS-H）和马拉地语（CDS-M）。连续招募了 120 名新登记的合格患者（CDS-H 组 60 名，CDS-M 组 60 名）。要求他们填写 CDS（翻译版本）和呼吸困难视觉模拟量表。仅使用基线测量值。
分别对 CDS-H 和 CDS-M 进行了有效性分析。结果表明 CDS-H 和 CDS-M 之间具有良好的结构有效性。通过计算 Pearson 相关系数（CDS-H 组和 CDS-M 组的平均 r 值分别为 0.64 和 0.764）来进行亚量表相关性分析。通过计算每个因子与 VAS-D 评分的相关性来计算趋同有效性，发现具有统计学意义（P < 0.001；平均 r 值范围为 0.706 至 0.714）。通过其内部一致性（Cronbach's alpha 系数范围为 0.716 至 0.879）来确定量表的可靠性。
本研究表明 CDS-H 和 CDS-M 是有效且可靠的多维量表，可用于评估晚期癌症患者的呼吸困难。
