Introduction: This study examines the mediating role of difficulties in emotion regulation in effect of rumination on post-traumatic stress symptoms and cancer-related distress in breast cancer patients. Methods: This is a cross-sectional study with a positivism paradigm, a quantitative approach and in the framework of a correlational design of the type of Structural equation modeling. A total of 220 women with breast cancer in Tehran completed the PCL-5 Checklist, The Ruminative Response Scale (RRS), The Impact of Event Scale, and Difficulties in Emotion Regulation Scale (DERS-16). The findings were analyzed through the advanced statistical method of structural equation modeling and using SPSS26 and SmartPLS 4 software. Results:The model fit indices were goof, SRMR = 0.5 and NFI = 93. The results obtained from structural equation modeling show a direct and significant effect of rumination on PTSD (β=0.219; T=3.31; P<.01), rumination on emotional dysregulation (β=0.257; T=4.05; P<.001) and emotional dysregulation on distress (β=0.406; T=6.56; P<.001) and the non-significance of rumination on PTSD (β=0.098; T=1.48; P=.138) was in the framework of the conceptual model of the present study. It is worth mentioning that in the effect of rumination on emotional dysregulation PTSD, it had a partial mediating role and in the effect of rumination on distress, it had a full mediating role. Conclusions:Taken together, from the obtained results, it can be concluded that the predictive effect of rumination on the symptoms of post-traumatic stress and distress in breast cancer patients will significantly increase with an increase in the level of emotional dysregulation. emotion regulation in breast cancer patients can be a protective factor in order to manage psychological problems caused by cancer.
Ghasemzadehbarki S, Shahgholian M, Abdollahi A, Izanloo B, Mirmalek A. The Mediating role of Difficulties in Emotion Regulation in Effect of Rumination on Post-traumatic stress symptoms and Cancer-related Distress in breast cancer patients. IJNR 2023; 18 (5) :62-75 URL: http://ijnr.ir/article-1-2840-en.html