Reliability and validity verification of the expanded prostate cancer index composite 26-item version in Chinese
10.3760/cma.j.issn.1672-7088.2019.26.008
- VernacularTitle: 中文简化版扩展性前列腺癌复合指数量表的信效度验证
- Author:
Xiaodan ZHU
1
;
Zhenqi LU
;
Xiaofeng GU
Author Information
1. Department of Nursing, Fudan University Shanghai Cancer Center Department of Clinical Oncology, Sahnghai Medical College of Fudan University, Shanghai 200032, China
- Publication Type:Clinical Trail
- Keywords:
Expanded Prostate cancer Index Composite 26-item version;
Exploratory factor analysis;
Confirmatory factor analysis
- From:
Chinese Journal of Practical Nursing
2019;35(26):2035-2039
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the reliability and validity of the Expanded Prostate cancer Index Composite 26-item version (EPIC-26) in Chinese patients with prostate cancer.
Methods:Totally 402 patients with prostate cancer at the Fudan University Shanghai Cancer Center were invited to fill in the Chinese version of EPIC-26. 402 samples were divided into two parts by random number table method. 201 samples were analyzed by exploratory factor analysis and another 201 samples were analyzed by confirmatory factor analysis.
Results:The total Cronbach alpha coefficient of Chinese version EPIC-26 was 0.845, and the Cronbach′s α coefficient of each domain ranged from 0.576 to 0.957. The results of exploratory factor analysis showed that the Chinese version of EPIC-26 was a 5-factor model, which could explain 63.456% of the total variance. The results of confirmatory factor analysis were as follows: χ2/df=1.641, GFI=0.863, AGFI=0.829, NFI=0.886, IFI=0.952, CFI=0.951, TLI=0.944, RMSEA= 0.057, which all met the standard of model fitting.
Conclusion:The Chinese version of EPIC-26 is a reliable and valid tool which is suitable for assessing the health-related quality of life of Chinese patients with prostate cancer.
