期刊
JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
卷 49, 期 5, 页码 945-952出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jpainsymman.2014.10.013
关键词
Edmonton Symptom Assessment System; numerical rating scale; palliative care; cancer; validation; constipation; sleep
资金
- Canadian Cancer Society [700862]
- Ontario Ministry of Health and Long-Term Care
- Rose Family Chair in Supportive Care, Faculty of Medicine, University of Toronto
Context. The Edmonton Symptom Assessment System (ESAS) measures the severity of nine symptoms. Constipation and sleep disturbance are common in patients with cancer, but are not currently included in the ESAS. Objectives. To validate the numerical rating scale (NRS) versions of ESAS and its revised version (ESAS-r), with the additional symptoms of constipation and sleep (CS), and to assess patient preference for either version. Methods. Outpatients with advanced cancer (N = 202) completed three assessments during a single clinic visit: ESAS-CS, and an added time window of past 24 hours; ESAS-r-CS, with a time window of now and symptom definitions; and the Memorial Symptom Assessment Scale (MSAS). Internal consistency was calculated using Cronbach's alpha. Paired t-tests compared ESAS-CS and ESAS-r-CS scores; these were correlated with MSAS using Spearman correlation coefficients. Test-retest reliability at 24 hours was assessed in 26 patients. Results. ESAS-CS and ESAS-r-CS total scores correlated well with total MSAS (Spearman's rho 0.62 and 0.64, respectively). Correlation of individual symptoms with MSAS symptoms ranged from 0.54-0.80 for ESAS-CS and 0.52-0.74 for ESAS-r-CS. Although participants preferred the ESAS-r-CS format (42.8% vs. 18.6%) because of greater clarity and understandability, the past 24 hours time window (52.8%) was favored over now (21.3%). Shortness of breath and nausea correlated better for the past 24 hours time window (0.8 and 0.72 vs. 0.74 and 0.64 in ESAS-r-CS, respectively). The 24-hour test-retest of the ESAS-CS demonstrated acceptable reliability (intraclass correlation coefficient = 0.69). Conclusion. The ESAS-CS and ESAS-r-CS NRS versions are valid and reliable for measuring symptoms in this population of outpatients with advanced cancer. Although the ESAS-r-CS was preferred, patients favored the 24-hour time window of the ESAS-CS, which also may best characterize fluctuating symptoms. (C) 2015 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.
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