献血者归队经历对献血返回意愿的影响OA

Objective To explore the impact of donor reentry experience,specifically among those with a single reac-tive serological result who completed the reentry process,on their willingness to return for future blood donation,and to ex-amine the mediating roles of blood donation knowledge and trait anxiety.Methods A cross-sectional survey was conducted between November and December 2025.A total of 386 blood donors from the Changsha Blood Center were categorized into a reentry group(n=123)and a control group(n=263).Data on demographic characteristics,blood donation knowledge(BDKQ),trait anxiety(STAI-T),and blood donation return intention(BDRIS)were collected via questionnaires.SPSS 27.0 and AMOS 28.0 were used for statistical analyses,including independent-samples t-test,one-way ANOVA,multiple linear regression,and path analysis for mediating effect testing.Results There were statistically significant differences in age,occupation,education level,monthly income and donation frequency between the reentry group and the control group(all P<0.05).The reentry group scored significantly higher in blood donation knowledge and blood donation return inten-tion than the control group(both P<0.05).The mean BDRIS score was 11.51±3.62,indicating a relatively high intention to return.Blood donation knowledge was significantly negatively correlated with trait anxiety(r=-0.15,P<0.05)and pos-itively correlated with blood donation return intention(r=0.19,P<0.05);trait anxiety was significantly negatively correla-ted with blood donation return intention(r=-0.33,P<0.05).Significant differences in BDRIS scores were found based on group(reentry vs control),age,and number of previous donations(all P<0.05).Multiple linear regression showed that BDKQ positively predicted BDRIS(β=0.11,P<0.05),while STAI-T negatively predicted BDRIS(β=-0.27,P<0.05).Path analysis further revealed that the reentry experience had no direct effect on the intention to return.However,it exerted a positive influence through two indirect pathways:1)a simple mediating effect via increased blood donation knowledge(β=0.17,accounting for 25.0%of the total effect),and 2)a chain mediating effect through"increased blood donation knowledge → decreased trait anxiety"(β=0.05,accounting for 8.1%of the total effect).The model fit indices reached the ideal fitting criteria.Conclusion The donor reentry experience does not directly enhance the intention to re-turn for blood donation.Rather,it may exert an indirect positive influence by increasing blood donation knowledge and through the sequential pathway of"increased knowledge → decreased trait anxiety".Blood collection institutions should le-verage the reentry process as an opportunity for education and psychological support to improve donor retention rate.