Reliability and validity of Chinese version of Cardiac Rehabilitation Barriers Scale

Objective To develop a Chinese version of Cardiac Rehabilitation Barriers Scale (CRBS) by translation, cultural adaption, item analysis, and test its reliability and validity, so as to provide an appropriate assessment tool for identifying the barriers that will prevent patients with coronary heart disease (CHD) from attending cardiac rehabilitation (CR). Methods After translating, cultural adaption and availability evaluation, we formed a Chinese version of CRBS (CRBS-C). From March to July in 2018, CHD patients with indication of CR who were hospitalized in cardiovascular department of Chinese PLA General Hospital were investigated by CRBS-C for testing its reliability and validity. Results A total of 126 patients were investigated and 121 of them responsively answered the questionnaire with a completion rate of 96.03%. During cultural adaption, we deleted item 19 and revised the expression of item 8. After item analysis, we deleted item 20. In exploratory factor analysis, 5 main factors with eigenvalue＞ 1 were extracted. So we revised its dimensions into 5 and renamed them. The factor loading of each revised item was above 0.40, the Cronbach's α and split-half reliability coefficient was 0.89 and 0.86 for the scale, ranged from 0.73 to 0.91 and 0.73 to 0.87 for each dimension. Conclusion The Chinese version of CRBS consists of 5 dimensions with 19 items, with good psychometric properties, which is appropriate to be used to assess the barriers of cardiac rehabilitation in Chinese patients with CHD.