Objective To explore the relationship between posttraumatic stress disorder and nurses′ psychological capital. Methods By convenient sampling, totally 550 nurses in 5 first-class upper level general hospitals in Zhejiang province were investigated by the posttraumatic stress disorder (PTSD)Cheeklist-Civilan Version (PCL-C) and Nurses Psychological Capital Questionnaire Revision (NPCQR), and the results were analyzed. Results 18.35%investigated nurses showed a certain degree of PTSD symptoms and 13.71% showed obvious PTSD symptoms. The positive rate was 32.06%.The overall score of nurses′psychological capital was 78.81 ± 16.54, which was in the middle level, and the dimension scores from high to low were self-efficacy (23.80±5.35), hope (23.36±5.24), resilience (19.66 ±4.29), and optimism (11.99 ± 3.21). The nurses′psychological capital had a negative effect on posttraumatic stress disorder (P<0.01). Conclusions Psychological capital of nurses is a negative predictor of PTSD symptoms, which suggested that managers should pay more attention to the development of nurses′psychological capital to reduce and prevent the occurrence of posttraumatic stress disorder,then to improve nursing service quality.

Objective: To investigate the relationship between workplace bullying and posttraumatic stress disorder (PTSD) in nursing staff, and to analyze the role of psychological capital between workplace bullying and PTSD. Methods: From December 2014 to June 2015, convenience sampling was used to collect 496 nurses from 5 grade A tertiary hospitals in a province of China. Their workplace bullying, psychological capital, and PTSD status were assessed using the Negative Acts Questionnaire, Psychological Capital Questionnaire, and Posttraumatic Stress Disorder Self-Rating Scale, respectively. The correlation between variables was analyzed using a structural equation model. Results: Among these nurses, the scores of negative acts, psychological capital, and PTSD were 37.15±12.83, 78.81±16.54, and 34.56±12.52, respectively. The score on each dimension of negative acts was positively correlated with that on each dimension of PTSD (P<0.01) ; the score on each dimension of psychological capital was negatively correlated with that on each dimension of PTSD and negative acts (P<0.01). Negative acts had a positive predictive effect on PTSD (β=0.539, P<0.01) , which was reduced after inclusion of psychological capital (β=0.513, P<0.01). The path coefficient was 0.62 for the effect of negative acts on PTSD, -0.18 for the effect of negative acts on psychological capital, and -0.11 for the effect of psychological capital on PTSD (P<0.05) . Conclusion Workplace bullying is a predictive factor for PTSD, and psychological capital plays a mediating role between workplace bullying and PTSD. The manager should reduce workplace bullying to improve the psychological capital in nursing staff and to prevent and reduce PTSD.

Objective To investigate the relationship between D-dimer and platelet to lymphocyte ratio(PLR)and prognosis of breast cancer(BC).Methods The clinical data of 67 BC patients hospitalized in the First Affiliated Hospital of Nanjing Medical University from September 2018 to March 2020 were retrospectively analyzed.Thirty healthy individuals during the same period were enrolled as controls.Their plasma D-dimer levels,blood platelet count,and lymphocyte count were detected and PLR was calculated.The D-dimer and PLR levels in BC patients and their correlations with clinical characteristics and prognosis were analyzed.Results The preopera-tive levels of D-dimer(1.13[0.62,2.18]mg/L)and PLR(135.2[106.6,166.5])in BC patients were significantly higher than that(D-dimer:0.35[0.16,0.59]mg/L;PLR:102.9[88.4,115.8])in healthy controls(P<0.001).The preoperative levels of D-dimer(1.39[0.78,2.33]mg/L)and PLR(152.2[118.0,169.3])in the postoperative recurrence group were significantly higher than that(D-dimer:0.35[0.16,0.59]mg/L;PLR:102.9[88.4,115.8])in the postoperative non-recurrence group(P<0.001).The areas under the receiver operating characteristics(ROC)curve(AUCROC)of D-dimer for the diagnosis and recurrence of BC were 0.891 and 0.724,respectively.The AUCROC of PLR for the diagnosis and recurrence of BC were 0.735 and 0.689,respectively.The AUCROC of the combination of D-dimer and PLR were 0.907 and 0.762,respectively.Plasma D-dimer levels were significantly positively correlated with lymph node metastasis(P=0.02)and distant metastasis(P=0.03)of BC,while PLR was significantly associated with lymph node metastasis of BC(P<0.001).The disease-free survival(DFS)rate of the combination group with high D-dimer and PLR levels was significantly lower than that with low D-dimer and PLR levels(Median survival time:24.8 months vs 30.5 months,P=0.048).Conclusion The preoperative levels of D-dimer and PLR are significantly correlated with lymph node metastasis and distant metastasis of BC,which may predict the surgical prognosis of BC.