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The Relationship Between Illness Perception, Mentalization and Type D Personality and the Quality of Life Among Coronary Heart Disease Patients: An Application of Structural Equation Model Publisher



Mosavi SMH1 ; Ebrahimi A2 ; Sanei H3 ; Abedi MR4 ; Feizi A5 ; Bagheriansararoudi R6
Authors
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Authors Affiliations
  1. 1. Department of Health Psychology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  2. 2. Department of Health Psychology, School of Medicine, Isfahan University of Medical Sciences, Iran
  3. 3. Department of Cardiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
  4. 4. Department of Counseling, School of Education and Psychology, University of Isfahan, Isfahan, Isfahan, Iran
  5. 5. Department of Epidemiology and Biostatistics, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran
  6. 6. Department of Health Psychology, Behavioral Sciences Research Center, School of Medicine, Isfahan University of Medical Sciences, Iran

Source: Journal of Isfahan Medical School Published:2022


Abstract

Background: Patients who suffered coronary artery disease (CAD) experience a lower quality of life.This study aimed to investigate the mediating role of the illness perception variable in the relationship between mentalization and personality type D with quality of life in patients with coronary heart disease. Methods: The present study was performed using correlation modeling using structural equation modeling. Based on Cohen's sample size determination table, 210 patients with coronary heart disease were enrolled by random sampling method. Questionnaires of type D personality, quality of life (SF-36), mentalization (Ment S) and disease perception (IPQ) were used to gather data for this study which were completed by the patients themselves. After data collection, the relationship between the two variables with Pearson correlation and the interactive relationship in the structure of the theoretical model drawn in this study was evaluated using structural equation modeling. Findings: The final research model had a very good fit. The results showed a direct effect of type D personality and disease perception on quality of life but the direct effect of mentalization on quality of life was not significant. Also, the indirect effect of type D personality and mentalization through disease perception on quality of life was statistically significant. Conclusion: Cognitive and emotional representation of the disease, which is the illness perception, can mediate the relationship between psychological and personality variables with quality of life. Therefore, in improving the perception of the disease to improve the quality of life of patients, personality, behavioral and psychological variables can serve as tar ets of intervention. © 2022 Isfahan University of Medical Sciences(IUMS). All rights reserved.
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