Aim To investigate the relationships and pathways between dyadic coping, intimate relationship and post‐traumatic growth (PTG) in Chinese patients with breast cancer. Design A cross‐sectional study. Methods Between November 2019 and November 2020, 133 patients with breast cancer who received therapy in tertiary grade‐A hospitals at Dalian, China completed questionnaires including demographic and clinical questionnaires, Locke–Wallace Marriage Adjustment Test, Chinese version of the Dyadic Coping Inventory and Chinese version of the Post‐traumatic Growth Inventory. Structural equation modelling was used to analyse the pathways. Results Dyadic coping was positively interrelated with PTG and intimate relationship (r = .355, p < .01; r = .213, p < .05); intimate relationship was negatively interrelated with PTG (r = −.207, p < .05). The structural equation model demonstrated adequate fit. Dyadic coping and intimate relationship directly affected PTG (β = .469, p < .05; β = −.309, p < .05). Dyadic coping indirectly affected PTG through intimate relationship (β = −.066, p < .05). Conclusions Dyadic coping was a stimulus factor, but intimate relationship was an obstructive factor in enhancing PTG for the Chinese patients with breast cancer. Furthermore, intimate relationship may have significant mediating effects in the link between dyadic coping and PTG. Strategies that improve dyadic coping level and avoid excessive intimacy relationships between couples contribute to the development of PTG among patients with breast cancer. Impact The research provides new ideas and intervention entry points for global nurses and psychotherapists so that they can enact and implement targeted PTG intervention plans for patients with breast cancer worldwide.

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Objective To investigate the prognostic value of the Prognostic Nutritional Index, Neutrophil to Lymphocyte Ratio, and Platelet to Lymphocyte Ratio in patients with atrial fibrillation after lung cancer surgery, which can provide objective predictors for screening patients with poor prognosis. Methods From April 2020 to August 2022, 157 patients with atrial fibrillation after lung cancer resection were enrolled. The blood levels of PNI, NLR, and PLR were collected on the last day before surgery and the day of the surgery. Patients were grouped according to the median or the ROC curve's best cut-off point. The K-M survival curve was drawn to analyze the incidence of composite adverse prognostic events in different groups, and COX regression was used to analyze the influencing factors of composite adverse prognostic events. Results The K-M survival curves of the high NLR group on the last day before the surgery (P = 0.007), the high PLR group on the day of the surgery (P = 0.022), and the high PLR group on the last day before the surgery (P = 0.001) were significantly different. The high PLR group on the last day before the surgery (HR = 4.225, 95%CI 1.715–10.410) and history of malignant tumor (HR = 3.548, 95%CI 1.178–10.690) were independent risk factors for composite adverse prognostic events in patients with AF after lung cancer surgery. Conclusions Patients with a preoperative PLR > 173.55 on the last day before the surgery and a history of malignant tumor are the effective indicators for the occurrence of combined adverse prognostic events in patients with atrial fibrillation after lung cancer surgery.