Introduction: Nowadays, the most sustainable competitive advantage of all organizations, such as medical centers, is human capital. One of the most important ways to create a competitive advantage in health care centers is reducing job stress among nurses. Studies show that reducing job stress may lead to organizational commitment which is a vital factor to achieve organizational efficiency.
Materials and Methods: This research is a descriptive and correlation study in nature. The statistical population in this study was all nurses (N=310) of Behbahan city and obtained sample by the Cochran formula including 120 nurses of all hospitals in Behbahan were selected by simple random sampling method. The instruments for data collection were Health and Safety Executives questionnaire (HSE) and organizational commitment questionnaire of Allen and Meyer. Pearson correlation coefficient and multiple regression analysis were used to analyze the data. Significance level in this study was considered P<0.05. In this study, job stress factors were considered as independent variables and organizational commitment as dependent variable
Results: The results showed that there is a significant and inverse relation between job stress and organizational commitment. Also, there is a significant and inverse relationship between job stress and affective commitment, normative commitment and continuance commitment.
Conclusion: Taking regression analysis into account, the research concluded that the peer relation is the most powerful predictor of organizational commitment.