Validity and Reliability of Korean Version of Self-Care Chronic Obstructive Pulmonary Disease Inventory (SC-COPD) and Self-Care Self-Efficacy Scale (SCES-COPD)

Purpose: This study examined the validity and reliability of the Korean version of the Self-Care in Chronic Obstructive Pulmonary Disease Inventory (SC-COPDI) and the Chronic Obstructive Pulmonary Disease Self-Care Self-Efficacy Scale (SCES-COPD). The SC-COPDI consists of the Self-Care Maintenance Scale (SCMES), Self-Care Monitoring Scale (SCMOS), and Self-Care Management Scale (SCMAS). Methods: The original tool was translated using a back-translation process. Participants were 241 patients with COPD at the Chonnam National Uni-versity Hospital in Korea. The construct validity was verified through confirmatory factor analysis, and reliability was verified using Cron-bach's alpha. Results: The SCMES consisted of 10 items of three factors?one of four factors was deleted from the original tool. In the SC- MOS, there were six items of two factors after two items were deleted from the original tool. The SCMAS consisted of the original 10 items of three factors. The SCES-COPD consisted of six items of two factors, with one item removed from the original tool. The model fit indices of all tools were good, and the construct validity was confirmed. Cronbach's alpha of SCMES was .72, SCMOS was .90, SCMAS was .81, and SCES-COPD was .85. Conclusion: The Korean version of SC-COPDI and SCES-COPD are valid and reliable instruments for measuring self -care in people with COPD. These instruments can be used in self-care studies of COPD patients in Korea.