RESUMO
【Objective】 To explore the factors affecting the off-site vasovagal reactions in whole blood donors, aimed at providing references for formulating interventions. 【Methods】 The off-site vasovagal reactions in whole blood donors in 2019 was investigated in terms of gender, age, frequency of blood donation, weight and season were classified and analyzed. 【Results】 Among the 42 874 donors who donated 400 mL of whole blood, 67 had non-severe off-site vasovagal reaction, accounting for 0.16%, and none developed severe reaction. Single-factor and multi-factor correlation analysis showed that the age (18~25 years old) and weight (< 55 Kg) were the main influencing factors of off-site vasovagal reaction, while gender, blood donation frequency and season showed no statistical significance. 【Conclusion】 We should pay close attention to the factors predicting the off-site vasovagal reaction and formulate corresponding interventions to reduce the reaction rates, so as to improve the quality of blood donation service, and ensure the safety of blood donors.