부산대학교 도서관

The purpose of this study was to evaluate reliability and validity of the Japanese version of the COPD Self-Efficacy Scale （CSES-J）. The CSES consists of 34 items to assess self-efficacy in patients with chronic obstructive pulmonary disease （COPD）. Ninety-five patients with COPD were recruited to determine the reliability and validity of the CSES-J. The CSES-J indicated a good internal consistency（α=0.98）. The validity of the instrument was confirmed by correlations between the Japanese version of the CSES and various convergent and discriminant questionnaires and medical records, including General Self-Efficacy Scale, Hospital Anxiety and Depression Scale（HADS）, subjective well-being, Kihon check list, pulmonary function tests, and GOLD classification. The factor structure was different from that of CSES, likely due to differences in cultural backgrounds of recruited patients. The results of the present study confirmed that the CSES-J is a valid and reliable instrument to assess self-efficacy in Japanese COPD patients.