Residual risk of hepatitis C virus in blood screening among voluntary blood donors in Zhengzhou / 中国输血杂志

ABSTRACT

【Objective】 To evaluate the residual risk of hepatitis C virus (HCV) in blood screening among voluntary blood donors in Zhengzhou. 【Methods】 The ELISA and NAT screening results of 497 171 voluntary blood donors in Zhengzhou from January 2019 to December 2020 were collected through the information management system of our blood center.The residual risk of HCV was assessed using the Prevalence-Window Period Residual Risk Model. 【Results】 The residual risk among repeated and first-time blood donors was 1∶132 280 (95% CI 1∶95 520~1∶188 820) and 1∶44 090 (95% CI 1∶31 840~1∶62 940), respectively. The overall residual risk of blood donors screening was 1∶68 540 (95% CI 1∶65 910~1∶130 290). The reactive rate of HCV screening in first-time blood donors (0.144%, 334/231 168) was significantly higher than that in repeated blood donors (0.014%, 36/266 003) (P<0.05), and the reactive rate of repeated blood donors in 2019 (0.019%, 26/135 267) was significantly higher than that in repeat blood donors in 2020 (0.008%, 10/130 736) (P<0.05). 【Conclusion】 The residual risk of HCV among voluntary blood donors in Zhengzhou is low.The publicity and recruitment should be further strengthened to establish a stable team of voluntary blood donation, and health consultation and physical examination should also be strengthened to further reduce the residual risk of blood transfusion.