Objective: To analyze the structural changes in whole blood and apheresis platelet donations in Chinese Society of Blood Transfusion (CSBT) sentinel units from 2021 to 2025, and to provide evidence for donor recruitment and blood service management. Methods: Aggregated data reported by sentinel sites were collected and stratified according to six indicators: age, sex, donation history, donation volume, donation site, and organization mode. Pearson χ test, Cramer′V coefficient, Cochran-Armitage trend test and simple linear regression were adopted for analysis. Results: A total of 16 256 973 whole blood donations and 1 576 546 apheresis platelet donations were included. Among whole-blood donations, the proportion of donors aged 18-22 years decreased from 27.30% to 10.60%. The proportion of male donors increased from 58.81% to 63.13%; the proportion of people aged 30 and above increased from 58.40% to 75.30%; the proportion of fixed locations rose from 28.37% to 36.57%; the proportion of social groups increased from 21.69% to 39.69%. The 400-mL donations decreased from 62.12% to 53.46%, while individually initiated voluntary donations remained above 50%. Apheresis platelet donations were predominantly from males, individuals aged 30-39 years, and repeat donors; 2-treatment-unit apheresis platelet donations increased from 67.19% to 74.93%, and individually initiated donations accounted for 92.97%-96.02%. Statistically significant overall annual compositional differences were observed for all six indicators (all P<0.001), whereas linear trends for some sub-categories were not statistically significant. Conclusion: In the participating CSBT sentinel units, among whole blood donations, the proportions of donors aged 18-22 years, university-organized group donations, and donations at blood mobiles decreased, whereas the proportions of organizational group donations and donations at fixed venues increased. The apheresis platelet donation cohort is relatively mature and is evolving toward a high-efficiency donation model. Individual voluntary donation remains the primary organization mode for both donation types. Strategies such as youth donor recruitment, optimized layout of fixed donation sites, and retention of repeat donors should be strengthened to improve the resilience of blood supply.

Objective To explore the clinical outcome of individuals with Clinical High Risk (CHR) for psychosis and its relationship with Theory of Mind (ToM) function.Methods The Structured Interview for Prodromal Symptoms/Scale of Prodromal Syndromes (SIPS/SOPS) was applied to assess prodromal psychosis.The Reading the mind in the Eyes and faux pas Task were conducted to assess the function of Theory of Mind among the individuals of clinical high risk of psychosis.All participants had completed the 2-year follow-up.Conversion was determined using the criteria of presence of psychotic symptoms (POPS).According to the outcome,CHR individuals were divided into conversion group (n=20) and no-conversion group (n=50).The baseline clinical symptom characteristics and Theory of Mind were compared between groups.Results There was no significant difference in clinical symptom characteristics among individuals with CHR (P＞0.05).In the faux pas text,there were significant differences in Faux Pas Detection (P=0.01),Faux Pas Understanding (P=0.01) and Faux Pas Total (P=0.02) but not in control stories and the Reading the Mind in the Eyes Test between convertors and non-convertors (P＞0.05).Conclusion The ToM disability in clinical high risk population increases risk for conversion to psychosis.

As one of special groups in social groups,vagrant psychiatric patients have uniqueness.There are many ethical issues in their diagnosis and treatment,such as voluntary principles and involuntary medical treatment,protective constraints,patient's privacy protection,personalized treatment,fairness and so on.Therefore,to protect the fights and interests of psychiatric patients,it should strictly follow the standard of involuntary hospitalization and four principles of medical ethics when they are admitted to hospital;it should give protective constraints and make the diagnosis of mental disorder when they exist impulses and negative risks involved themselves or others.Meanwhile,it should give psychological counseling,take minimum limit to patient as principle,develop personalized treatment plan,provide humanity service,pay attention to the protection of privacy rights and promote early recovery of patient.