Background: Nurses' organizational citizenship behavior, a spontaneous "altruistic work behavior", may be affected by psychological capital and organizational commitment, but its mechanism is not clear. The aim of this study was to investigate the characteristics and distribution of psychological capital, organizational commitment and organizational citizenship behavior among nurses during the COVID-19 epidemic, and explore the mediating role of organizational commitment in psychological capital and organizational citizenship behavior.
Methods: Across-sectional survey was conducted among 746 nurses from 6 designated hospitals for treatment of COVID-19 in China. Descriptive statistics, Pearson correlation analysis, and structural equation model were used in this study.
Results: Nurses' psychological capital, organizational commitment and organizational citizenship behavior scores were 103.12 ± 15.57, 46.53 ± 7.14 and 101.47 ± 12.14, respectively. Additionally, organizational commitment partially mediates between psychological capital and organizational citizenship behavior.
Conclusions: Nurses' psychological capital, organizational commitment and organizational citizenship behavior were at the upper middle level during the COVID-19 epidemic, which was affected by social-demographic variables. Moreover, psychological capital can affect organizational citizenship behavior through the mediating effect of organizational commitment. The findings call for the nursing administrationshould develop and excavate nurses' psychological capital, enhance nurses' organizational commitment, so as to promote nurses' organizational citizenship behavior.