Reliability, Validity, Modification and Expansion of the Chinese Version of the Disease-Specific Anxiety Questionnaire for Chronic Obstructive Pulmonary Disease

Int J Chron Obstruct Pulmon Dis. 2024 May 14:19:1047-1060. doi: 10.2147/COPD.S455171. eCollection 2024.

Abstract

Purpose: To translate a disease-specific anxiety questionnaire on chronic obstructive pulmonary disease (COPD) and test its reliability and validity in China.

Patients and methods: The German version of the revised COPD Anxiety Questionnaire (CAF-R) was initially validated using step-by-step translation, back-translation, and cross-cultural adaptation. The reliability and validity of the Chinese version of the CAF-R (CAF-R-CN) were tested among 448 patients with COPD (mean age =71.42±9.33 years, 17.2% female) from four medical institutions in Suzhou, Jiangsu Province, using convenience sampling, from April 2022 to June 2023.

Results: The CAF-R-CN included six dimensions with a total of 25 items. The item-level content validity index was 0.860-1.000; the scale-level content validity index was 0.920. The structural validity χ2/df was 2.326, the root mean square error of approximation was 0.077, the comparative fit index was 0.924, and the Tucker-Lewis index was 0.912. The six-dimensional internal consistency index Cronbach's α coefficient was 0.696-0.910, and the test-retest reliability was 0.949. An optimal cut-off score of 50.5 was selected with a sensitivity of 0.786 and specificity of 0.870.

Conclusion: The CAF-R-CN had satisfactory reliability and validity and can be used to identify and assess anxiety in COPD patients with a Chinese cultural background.

Keywords: Chinese translation; assessment; chronic respiratory disease; fear; scale; specificity.

Publication types

  • Validation Study
  • Multicenter Study

MeSH terms

  • Aged
  • Aged, 80 and over
  • Anxiety* / diagnosis
  • Anxiety* / psychology
  • China
  • Cultural Characteristics*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Predictive Value of Tests*
  • Psychometrics
  • Pulmonary Disease, Chronic Obstructive* / diagnosis
  • Pulmonary Disease, Chronic Obstructive* / physiopathology
  • Pulmonary Disease, Chronic Obstructive* / psychology
  • Reproducibility of Results
  • Surveys and Questionnaires
  • Translating*

Grants and funding

This work was supported by the National Natural Science Foundation of China (Grant No: 72204182), Suzhou Science and Technology Development Plan Project (Grant No: SKY2022122, SKJY2021063).