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Naji Rad S, amiri M, taheri E. Relationship Between Event Centrality and Post-Traumatic Growth in Iranian Women With Breast Cancer: The Mediating Role of Resilience and Rumination. IJPCP 2026; 32 (1)
URL: http://ijpcp.iums.ac.ir/article-1-4576-en.html

Objectives This study aimed to examine the relationship between event centrality and post-traumatic growth (PTG), mediated by resilience and rumination, among Iranian women diagnosed with breast cancer.
Methods This is a cross-sectional study using the structural equation modeling (SEM) approach. Participants were 110 women with breast cancer who visited Omid and Imam Reza hospitals in Mashhad, Iran, during the year 2023–2024. They were selected through purposive sampling. Data were collected using Berntsen and Rubin’s Centrality of Event Scale (CES), Tedeschi’s Post-Traumatic Growth Inventory (PTGI), the Connor-Davidson Resilience Scale (CD-RISC), and Cann et al.’s Event-Related Rumination Inventory (ERRI). Data were analyzed in SPSS software, version 25 and Smart PLS software, version 4, employing descriptive statistics and SEM.
Results The SEM model demonstrated acceptable fit based on the reported fit indices, including SRMR=0.08. The results showed significant positive associations among event centrality, resilience, deliberate rumination, and PTG. Resilience significantly mediated the relationship between event centrality and PTG (β=0.257, P<0.001). In contrast, intrusive rumination (P=0.401), and deliberate rumination (P=0.310) did not significantly mediate this relationship. Resilience and intrusive rumination together also mediated the relationship between event centrality and PTG (β=0.127, P=0.001). However, resilience and deliberate rumination together were not significant mediators (P=0.095). Overall, the SEM model explained 81.5% of the variance in PTG. 
Conclusion Resilience plays a key role in mediating the relationship between event centrality and PTG among women with breast cancer.