Assessing the EORTC QLQ-BM22 module using rasch modeling and confirmatory factor analysis across countries: A comprehensive psychometric evaluation in patients with bone metastases

Chung Ying Lin, Amir H. Pakpour

研究成果: Article同行評審

8 引文 斯高帕斯(Scopus)

摘要

Background: The European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire Bone Metastases Module (EORTC QLQ-BM22) is a recently designed supplement to EORTC Quality of Life Questionnaire-C30 (EORTC QLQ-C30). Additional psychometric properties, especially using confirmatory factor analysis (CFA) and the Rasch model, are warranted. Materials and Methods: A total of 573 patients with bone metastases were enrolled from eight countries with a mean±SD age of 55.8±13.7 years. Slightly more than two thirds of them were female (n=383; 66.8%). CFA was used to examine the BM22 framework; Rasch models were applied to understand misfit items and differential item functioning (DIF). Results: The fit indices were satisfactory in CFA (comparative fit index=0.972, Tucker-Lewis index=0.964, root mean square error of approximation=0.076, and standardized root mean square residual=0.045). All items fit well in the Rasch models (mean square values were between 0.5 and 1.5), and only one item (number 17) displayed DIF across gender. However, there were six DIF items across Canada and Taiwan, ten across Canada and Iran, and six across Taiwan and Iran. Conclusions: The BM22 has satisfactory psychometric properties, and could assess the QoL of patients with bone metastases specifically focusing on their symptoms. Clinicians may want to use it to capture the underlying QoL for patients with bone metastases. However, the score of item 17 should be interpreted with caution when comparing male and female patients. In addition, researchers should note that variation in DIF items may occur when conducting an international study.

原文English
頁(從 - 到)1405-1410
頁數6
期刊Asian Pacific Journal of Cancer Prevention
17
發行號3
DOIs
出版狀態Published - 2016 四月 19

All Science Journal Classification (ASJC) codes

  • Epidemiology
  • Oncology
  • Public Health, Environmental and Occupational Health
  • Cancer Research

指紋 深入研究「Assessing the EORTC QLQ-BM22 module using rasch modeling and confirmatory factor analysis across countries: A comprehensive psychometric evaluation in patients with bone metastases」主題。共同形成了獨特的指紋。

引用此