Abstract
            Background and aims: Nursing is a demanding profession associated with high levels of stress  and burnout. In this study, a theoretical model was applied to investigate structural associations  among burnout, mental health, and workplace psychosocial factors for nurses working in Isfahan  province, Iran.  
  Methods: This cross-sectional study was conducted among 416 nurses in Iran selected using  a stratified sampling method. The required data were collected using the General Health  Questionnaires, Copenhagen Burnout Inventory, and Copenhagen Psychosocial Questionnaire  and then analyzed by SPSS-24 and Amos-24 software, correlation tests, and structural  equation modeling.  
  Results: Burnout was significantly correlated with poorer mental health, with the highest  correlation coefficient related to the component of personal burnout (r=0.30, P<0.001). The  results of the model revealed that burnout negatively impacted mental health (β=0.33, P=0.001)  and psychosocial factors (β=-0.90, P=0.001). However, burnout did not have a significant  indirect effect on psychosocial factors through mental health (P=0.08).  
  Conclusion: Higher burnout levels were associated with poorer mental health and adverse  workplace psychosocial conditions. Accordingly, organizational interventions should focus on  reducing burnout to promote mental health and psychosocial factors.