Aims and background: Recognizing the variable mediating role of openness to experience in the relationship between pain self-efficacy predictors variables, pain management strategies and resiliency with variables of pain perception criteria in chronic pain patients. Materials and methods: In this fundamental and descriptive-correlational study, 340 chronic pain patients were hospitalized in all hospitals in Tehran, including public and private hospitals, general and specialized centers and clinics, as well as medical centers provided by the sampling method of access available. The tools used in the Big Five Personality Examination, NEO-PI R, Pain Self-Efficacy Test, Pain Management Strategies Test, Resiliency Test, Chest Pain Perception Test, West Yon Yale. The data obtained using the least squared structural equation Minority and path analysis were analyzed in the smart PLS software. Findings: The results of the study, openness to experience, have a full mediator role in the relationship between self-efficacy and perception of pain. Openness to experience has a mediator role in the relationship between pain management and pain perception. Openness to experience has a partial mediator role in the relationship between resilience and pain perception. The strongest mediator role in the above model relates to the role of mediating openness to experience in the relationship between self-efficacy and perception of pain. Conclusion: The openness of the experience, the strong mediator of pain self efficay, the pain management strategy, persistence with the perception of pain in chronic patients. Openness to experience in a person with chronic pain affects perception of a person’s pain.

Keywords: openness to experience, pain self-efficacy, pain management strategies, resiliency, perception of pain, chronic pain patients

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