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Objective@#To explore whether social support has a moderating effect on the relationship between negative emotions including depression, anxiety, stress with suicidal behaviors, and to provide reference for the suicide prevention among college students.@*Methods@#Three universities were selected in Qinghai, Ningxia and Xinjiang province, and 4 893 college students were selected using cluster sampling method. The Social Support Scale, Depression-Anxiety-Stress Scale(DASS) and Suicidal Behavior Questionnaire-Revised self-evaluation questionnaires were used to collect data. Hierarchical linear regression model was employed to explore the moderating effect of social support.@*Results@#A total of 4 893 college students completed full questionnaires and included in the final analysis. Among them, 738(15.08%) were under high risk of suicidal behaviors. The regression model showed that DASS score was positively associated with suicidal behavior (β=0.31, P<0.01), and social support was negatively associated with suicidal behavior (β=-0.08, P<0.01); Additionally, the interaction between social support and DASS negatively correlated with suicidal behavior (β=-0.05, P<0.01).@*Conclusion@#Social support may have buffering effects on the relationship between negative emotions (depression, anxiety and stress) and suicidal behaviors.
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Objective: To explore deep vein thrombosis (DVT) occurrence in patients after right heart catheterization and the effect of anticoagulant therapy. Methods: A total of 171 consecutive patients with electrophysiological study (EPS) and/or radiofrequency catheter ablation (RFCA) in our hospital from 2015-01 to 2016-05 were enrolled. All patients had supra-ventricular tachycardia and completed a venous surgery, they were randomly divided into 2 groups: Anticoagulation group,n=87 and Non-anticoagulation group,n=84. Lower extremity vascular Doppler ultrasonography was performed at (24-48) h post-operation to compare the incidence of DVT between 2 groups. Results: There were 13/171 patients were excluded for not completing post-operative lower extremity vascular Doppler ultrasonography including 9 patients in Anticoagulation group and 4 in Non-anticoagulation group. 158 patients finished post-operative examination and follow-up study. Anticoagulation group had 7/78 (8.97%) patients suffered from DVT, Non-anticoagulation group had 41/80 (51.3%) patients suffered from DVT,P<0.001. Conclusion: The incidence of DVT was higher after right heart catheterization without anticoagulation; heparin treatment may reduce DVT occurrence in relevant patients.