The mediating role of psychological capital in relations between spiritual well-being and mental health among nursing students

Background Nursing students face mental and emotional issues due to the nature of their profession. The role of protective factors such as psychological capital and spiritual well-being is vital in improving mental health. This study investigated the mediating role of psychological capital as a mediator in the relationships between spiritual well-being and mental health in Iran. Methods The present study was descriptive, cross-sectional research conducted on 426 undergraduate nursing students within a four-year educational program in Iran from July to December 2021. The participants were selected via convenience sampling. This research used psychological capital scale, spiritual well-being, and general health questionnaire. The collected data were then analyzed using descriptive tests, Pearson correlation, and a structural equation model. Results Spiritual well-being positively affects mental health and psychological capital. Psychological capital also is positively related to mental health. Psychological capital partially mediated the effect of spiritual well-being on mental health. Conclusion According to the results, High level of spiritual well-being can improve nursing students' mental health and the relationship is partially mediated Psychological capital. Therefore, psychological capital is an important factor in improving nursing students' mental health.