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A Cross-sectional Study on the Symptom Burden of Patients With Spinal Tumor: Validation of the Chinese Version of the M.D. Anderson Symptom Inventory-Spine Tumor Module.

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CONTEXT Tumors involving the spine are associated with unique symptoms affecting both patient survival and health-related quality of life. Currently, there is no disease-specific instrument in Chinese to assess the… Click to show full abstract

CONTEXT Tumors involving the spine are associated with unique symptoms affecting both patient survival and health-related quality of life. Currently, there is no disease-specific instrument in Chinese to assess the symptom burden of these patients. OBJECTIVES The objective of this study was to translate and validate a Chinese version of the M.D. Anderson Symptom Inventory-Spine Tumor Module (MDASI-SP-C) to assess the symptom burden of Chinese-speaking patients with spinal tumors. METHODS MDASI-SP-C was forward-and-backward translated according to standard protocols and administered to patients fulfilling study criteria at a major referral center of spine tumor between November 2014 and September 2015. The generic instruments of Short Form 36 Quality of Life Questionnaire (SF-36), Functional Assessment of Cancer Therapy-General Version (FACT-G), and Karnofsky Performance Scale were used along with MDASI-SP-C. Prevalence and severity distribution of each item were analyzed. Psychometric assessment and hierarchical cluster analysis were performed for the translated instrument. RESULTS One hundred forty-two patients were enrolled. High interdependency and relatively low intra-cluster distances were identified. Cronbach's alpha of the entire instrument, the symptom severity subscale, and the interference subscale was 0.93, 0.91, and 0.92, respectively. Principal axis factoring resulted in a four-factor solution, which was reduced to a three-factor (general symptoms, spine-specific symptoms, and gastrointestinal symptoms) solution on account of clinical interpretation. Correlation coefficients between MDASI-SP-C items and their corresponding domains in SF-36 and/or FACT-G were all greater than 0.3. MDASI-SP-C was able to distinguish patients with different Karnofsky Performance Scale levels. CONCLUSION MDASI-SP-C demonstrated satisfactory psychometric properties and could be used to better assess the symptom burden of Chinese-speaking patients with spine tumors for improved management of their medical needs.

Keywords: version; symptom burden; study; spine tumor; burden patients; tumor

Journal Title: Journal of pain and symptom management
Year Published: 2017

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