关键词: 临床护士, 组织支持, 工作投入, 心理资本, 职业使命感

Abstract: Objective To explore the chain mediating effect of psychological capital and the sense of professional mission on nurses' organizational support and work engagement,and to provide reference for improving nurses' job engagement. Methods A convenient sampling method was used to conduct a questionnaire survey on 519 clinical nurses in a grade-A tertiary hospital in Sichuan Province from April to July 2023 using the Chinese version of utrecht work engagement scale（UWES）,nurse organizational support scale,Chinese calling scale（CCS） and nurse psychological capital questionnaire,and the data were analyzed. Results The work engagement score of 519 clinical nurses was （67.76±18.65）points,with an average score of （3.99±1.10）points for each item. There were statistically significant differences in the level of work engagement among nurses of different age groups,professional titles,departments,working years,marital status,children's situation,employment methods,income levels,number of night shifts,and reasons for choosing nursing（all P<0.05）. There was a pairwise correlation between nurses' organizational support,psychological capital,sense of professional mission,and work engagement. Organizational support,psychological capital,and the sense of professional mission collectively explained 64.3% of the total variation in nurses' work engagement. The independent mediating effect of psychological capital and the sense of professional mission on nurses' organizational support and work engagement was significant（β=0.585,0.154,both P<0.01）,and the chain mediating effect was also significant（β=0.24,P<0.01）. Conclusion Organizational support can directly predict nurses' job engagement,and can also indirectly predict nurses' work engagement through the mediating effect of psychological capital and sense of professional mission.

Key words: Clinical nurse, Organizational support, Work engagement, Psychological capital, Sense of professional mission