Pessoni LL, Aquino ÉCD, Alcântara KCD. Prevalence and trends in transfusion-transmissible infections among blood donors in Brazil from 2010 to 2016.
Hematol Transfus Cell Ther 2019;
41:310-315. [PMID:
31409582 PMCID:
PMC6978541 DOI:
10.1016/j.htct.2019.03.009]
[Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 02/12/2019] [Accepted: 03/22/2019] [Indexed: 01/27/2023] Open
Abstract
Background
Assessing trends in the rate of transfusion-transmissible infections (TTIs) in blood donors is critical to the monitoring of the blood supply safety and the donor screening effectiveness. The objective of this study was to conduct a trend analysis of TTIs and associated demographic factors of donors at a public blood bank in the central Brazil.
Methods
A retrospective analysis (2010–2016) of blood donation data was performed to determine the prevalence of markers for TTIs. Multinomial and multivariate logistic regression were used to verify the association between the explanatory variables and TTIs. The trend was evaluated with the Prais Winsten’s regression analysis.
Results
The prevalence of TTIs was 4.04% (5,553 donors) among 137,209 donors, with a steady trend in the analyzed period. The seroprevalence for the hepatitis B virus (HBV), syphilis, hepatitis C virus (HCV), human immunodeficiency virus (HIV), Chagas disease, and human T-lymphotropic virus (HTLV) were 1.63%, 0.87%, 0.46%, 0.21%, 0.21% and 0.09%, respectively. The prevalence of HBV decreased (b = −0.021, p < 0.001), while syphilis increased (b = 0.112; p = 0.001), during the period investigated. The probability for a positive test for TTI was higher among donors with a low level of education, aged ≥30 years old, without stable marital status, and first-time donors.
Conclusions
Even with the reduction in HBV, the increased rate of syphilis may have contributed to the fact that the overall rate of TTIs did not decrease in the evaluated period.
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