Journal of Anesthesiology and Pain

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Background and Aim: This study aimed to investigate a chronic pain prediction model based on catastrophic fear by considering the mediating role of self-control in patients with knee pain. Methods: The research method is descriptive and correlational and the structural equation modeling method. The present study's statistical population was all patients with knee pain who were referred to Milad Hospital in Tehran in 1398. The total sample size was 400 patients who were selected by purposive sampling method. The research instruments included Van Korf et al. (1990) chronic pain questionnaire, the Sullivan et al. (1995) catastrophic pain questionnaire, and the Tanji et al. (2004) self-control questionnaire. Data analysis was performed using AMOS software, and necessary calculations and fitting indices and path coefficients were extracted for the proposed model. Results: The results of the statistical test showed that the model fit indices are in good condition. Conclusion: The findings showed that chronic pain is directly affected by catastrophic fear factors, and the relationship between catastrophic fear and chronic pain is direct. Catastrophic fear factors also have an indirect effect on chronic pain through self-control. Therefore, self-control can alleviate the catastrophic fear of patients with chronic pain.

Keywords: Chronic pain, catastrophic fear, self-control, knee pain

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