Reliability and validity of the Chinese version of Bergen Shift Work Sleep Questionnaire

Objective To translate the Bergen Shift Work Sleep Questionnaire (BSWSQ) into Chinese, and test the reliability and validity of the Chinese version of BSWSQ. Methods Through the process of translation, back translation, expert consultation, and pre-test, the Chinese version of BSWSQ was formed. The reliability and validity was evaluated by the investigation in the 255 shift nurses. Results The Chinese version of BSWSQ consists of four shifts, including seven questions, each shift including six or five of them. By exploratory factor analysis, two or one common factor was extracted, and the cumulative contribution rates were 67.632%, 67.598%, 50.960% and 56.060% respectively. The content validity index was 0.939. The total Cronbach's α of the questionnaire was 0.915, and the Cronbach's α of each shift was 0.787 to 0.803. The retest reliability was 0.744 to 0.811. Conclusions The Chinese version of BSWSQ has good reliability and validity, and can be applied to the assessment of sleep condition of Chinese shift nurses. Key words: Nurses; Sleep; Reliability; Validity