Validation of the Chinese version of the Care Evaluation Scale for measuring the quality of structure and process of end-of-life care from the perspective of bereaved family.

Background: Assessing the quality of structure and process of end-of-life care can help improve outcomes. There was currently no valid tool for this purpose in Mainland China. The aim of this study is to validate the Chinese version of the Care Evaluation Scale (CES).

Methods: From January to December 2017, a cross-sectional online survey was conducted among bereaved family members of cancer patients from 10 medical institutes. The reliability of the CES was assessed with Cronbach's α, and structural validity was evaluated by confirmatory factor analysis. Concurrent validity was tested by examining the correlation between the CES total score and overall satisfaction with end-of-life care, quality of dying and death, and quality of life.

Results: A total of 305 valid responses were analyzed. The average CES score was 70.7 ± 16.4, and the Cronbach's α of the CES was 0.967 (range: 0.802-0.927 for the 10 domains). The fit indices for the 10-factor model of CES were good(root-mean-square error of approximation, 0.047; comparative fit index, 0.952; Tucker-Lewis index, 0.946; standardized root mean square residual, 0.053). The CES total score was highly correlated with overall satisfaction with medical care (r = 0.775, P < 0.01), and moderately correlated with patients' quality of life (r = 0.579, P < 0.01) and quality of dying and death (r = 0.570, P < 0.01). In addition, few associations between CES total score and demographic characteristics, except for the family members' age.

Conclusions: The Chinese version of the CES is a reliable and valid tool to evaluate the quality of structure and process of end-of-life care for patients with cancer from the perspective of bereaved family in Mainland China.