Validation of the Constipation Risk Assessment Scale (CRAS) in Chinese cancer patients

医学 便秘 比例(比率) 癌症 风险评估 内科学 计算机安全 计算机科学 量子力学 物理
作者
Xiaoxiao Ma,Qian Lü,Yuhan Lu,Wenhua Yu,Dongqin Kang,Yiyuan Zhao,Pengbo Xing,Renxiu Guo,Yun Wang
出处
期刊:European Journal of Oncology Nursing [Elsevier BV]
卷期号:50: 101895-101895 被引量:8
标识
DOI:10.1016/j.ejon.2021.101895
摘要

The Constipation Risk Assessment Scale (CRAS) is a valid tool for predicting the risk of developing constipation. This study aimed to translate the CRAS into Chinese and evaluate its psychometric properties in Chinese cancer patients.The CRAS was translated into Chinese following standard forward- and back-translation procedures. Scale and item indices were calculated for content validity (S-CVI; I-CVI). In total, 175 cancer patients were assessed with the CRAS on the first day of antitumour treatment, of whom 145 were submitted to the predictive validity test, and their defecation pattern, stool consistency, and ease of defecation were assessed for one week. A receiver operating characteristic (ROC) curve was used to describe the prediction accuracy of CRAS-C for constipation. Reliability was evaluated by means of an interrater reliability test using the intraclass correlation coefficient (ICC) in 30 patients.The S-CVI was 0.99, and for each item, the I-CVI was 0.80-1.00. The area under the curve of CRAS-C was 0.722 (95% CI, 0.631-0.812). A CRAS-C score ≥11 indicated a high constipation risk, and a score <11 indicated a low constipation risk. The sensitivity and specificity were 0.887 (95% CI, 0.763-0.953) and 0.500 (95% CI, 0.376-0.624), respectively, and the positive predictive value and negative predictive value were 0.588 (95% CI, 0.472-0.695) and 0.846 (95% CI, 0.688-0.936), respectively. The ICC between the two raters for the total CRAS-C score was 0.963, and the ICC in the four subscales was 0.843-0.955.The CRAS-C demonstrated favourable content validity, predictive validity and interrater reliability. It can be used in the identification of subjects at risk of constipation and the development of constipation prevention programmes in Chinese cancer patients.
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