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Prevalence of hepatitis C virus infection according to the year of birth: identification of risk groups.

Prevalence of hepatitis C virus infection according to the year of birth: identification of risk groups.
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Neukam K, Ridruejo E, Pérez P, Campos RH, Martínez AP, Di Lello FA,


Neukam K, Ridruejo E, Pérez P, Campos RH, Martínez AP, Di Lello FA, (click to view)

Neukam K, Ridruejo E, Pérez P, Campos RH, Martínez AP, Di Lello FA,

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European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology 2017 10 27() doi 10.1007/s10096-017-3123-4

Abstract

Hepatitis C virus (HCV) screening according to the year of birth is recommended is some countries based on epidemiological data. The aim of this study was to analyze anti-HCV prevalence among people born between 1905 and 2015 in Argentina. Patients attending a tertiary care hospital in Buenos Aires, Argentina, from 2001 to 2015, who had a determination of anti-HCV, were included. Of 22,079 patients analyzed, 1,152 (5.2%; 95% confidence interval [CI]: 4.9%-5.5%) patients showed positive anti-HCV and 729 (3.3%; 95% CI: 3.1%-3.5%) patients showed detectable viremia. Three risk groups were identified (HCV prevalence): low-risk group-outpatient clinics/emergencies (2.8%); intermediate-risk group-in-patients (8%); and high-risk group-dialysis/transplants (27.2%). In the low-risk group, being born in 1973 or before was identified as a cut-off value for the risk of anti-HCV acquisition (area under the receiver-operator characteristic curve: 75.1 [95% asymptotic CI: 0.732-0.770; p < 0.001]). Ninety-one patients born after 1973 (0.8%) showed positive anti-HCV versus 457 individuals born in 1973 or before (5.8%), p < 0.001. In this group, positive anti-HCV was observed in 252 females (2.1%) and 296 males (4.1%), p < 0.001. In a multivariate analysis adjusted for gender, alanine-aminotransferase levels and HIV coinfection, being born in 1973 or before was independently identified as a risk for positive anti-HCV (adjusted odds ratio: 14.234 [95% CI: 9.993-20.277]; p < 0.001). People born in 1973 or before without other risk factors should be included in screening programs to link the highest possible number of HCV-infected patients to appropriate care and treatment.

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