Translation and Psychometric Evaluation of the Chinese Version of the Information Needs in Cardiac Rehabilitation Tool

PURPOSE: To translate the Information Needs in Cardiac Rehabilitation (INCR) tool into Chinese and evaluate its cultural adaptation and psychometric properties of this Chinese version. The INCR uses a Likert-type scale that aims to assess information needs in cardiac rehabilitation (CR) patients. METHODS: The initial Chinese INCR tool was generated by forward/backward translation and evaluation of face and content validity. The internal consistency was assessed by Cronbach α, item-to-total correlations, interitem correlations, and test-retest reliability using intraclass correlation coefficient. The construct validity was tested by principal component analysis and known-group validity by t test. A total of 296 CR patients were recruited from 2 university-affiliated hospitals in Guangzhou, China, using a convenience sample. RESULTS: The Chinese INCR tool included 10 subscales with 55 items. Cronbach α of 10 subscales ranged from 0.68 to 0.90. Intraclass correlation coefficients of 55 items were between 0.62 and 0.89. The item-to-total correlations for all items were between 0.23 and 0.73 and interitem correlations of 80% items ranged from 0.30 to 0.70. The content validity index was 0.91. Ten factors were extracted by principal component analysis, which together accounted for 66.74% of total variance. The mean total scores of Chinese INCR tool in CR patients with less than high school education were higher than scores in those with high school education and above, and there was a statistically significant difference (t = 2.95, P = .021). CONCLUSIONS: The Chinese version of INCR tool has strong psychometric properties, providing preliminary evidence of the reliability and validity of INCR tool to assess information needs in Chinese CR patients.