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Two decades of risk factors and transfusion‐transmissible infections in D utch blood donors
Author(s) -
Slot Ed,
Janssen Mart P.,
Marijtvan der Kreek Tanneke,
Zaaijer Hans L.,
van de Laar Thijs J.
Publication year - 2016
Publication title -
transfusion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.045
H-Index - 132
eISSN - 1537-2995
pISSN - 0041-1132
DOI - 10.1111/trf.13298
Subject(s) - medicine , syphilis , residual risk , incidence (geometry) , population , blood transfusion , hepatitis b virus , hepatitis b , immunology , epidemiology , human immunodeficiency virus (hiv) , virus , environmental health , physics , optics
BACKGROUND Risk behavior–based donor selection procedures are widely used to mitigate the risk of transfusion‐transmissible infections (TTIs), but their effectiveness is disputed in countries with low residual risks of TTIs. STUDY DESIGN AND METHODS In 1995 to 2014, Dutch blood donors infected with hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV), human T‐lymphotropic virus (HTLV), or syphilis were interviewed by trained medical counselors to identify risk factors associated with TTIs. Trends in the prevalence and incidence of TTIs were analyzed using binomial regression models. RESULTS A total of 972 new donors and 381 repeat donors had TTIs. New donors had higher rates of TTIs compared to repeat donors. Although the HBV and HCV prevalence gradually decreased over time, the incidence of all five TTIs remained stable during the past two decades. In new donors the TTIs had the following risk profiles: “blood‐blood contact” for HCV, “unprotected sex” for HIV and syphilis, and “country of birth” for HBV and HTLV. In infected repeat donors, sexual risk factors predominated for all TTIs. At posttest counseling, 28% of infected repeat donors admitted to risk factors leading to permanent donor exclusion if revealed during the donor selection procedure (predominantly male‐to‐male sex and recent diagnosis of syphilis). CONCLUSION The prevalence and incidence of TTIs among Dutch blood donors are six‐ to 60‐fold lower than in the general Dutch population, illustrating the effectiveness of donor selection procedures. However, at least a quarter of infected donors appeared noncompliant to the donor health questionnaire (DHQ), suggesting that DHQs, or the way donor questioning is implemented, can be improved.

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