Important note: Information in this article was accurate in 2000. The state of the art may have changed since the publication date.
Assessment of hepatitis C virus RNA and genotype from 6807 patients with chronic hepatitis C in the United States.
J Viral Hepat. 2000 May;7(3):196-202. Unique Identifier : AIDSLINE MED/20307922 Blatt LM; Mutchnick MG; Tong MJ; Klion FM; Lebovics E; Freilich B; Bach N; Smith C; Herrera J; Tobias H; Conrad A; Schmid P; McHutchison JG; National Genetics Institute, Los Angeles, CA, USA.
Abstract:
Hepatitis C virus (HCV) RNA status and HCV genotype have become important tools in the diagnosis and monitoring of therapy in chronic HCV infection. To establish a database with respect to HCV genotype and serum HCV RNA concentrations in chronic hepatitis C patients in the United States, we analysed 6807 chronic hepatitis C patients who had HCV RNA and HCV genotype tests conducted at a central laboratory. The HCV RNA concentration cut-off for the lower 25th percentile of this population (low titre) was 0.9 x 106 copies ml-1. The median HCV RNA concentration was 3.5 x 106 copies ml-1 and the cut-off for the upper 25th percentile (high titre) was 5 x 106 copies ml-1. Male patients had a median HCV RNA concentration of 3.9 x 106 copies ml-1, which was significantly higher than the median HCV RNA level for females (2.75 x 106 copies ml-1; P < 0.001). HCV genotype 1 was detected in 73% of patients; genotype 2 in 14%; genotype 3 in 8%; mixed genotype in 4%; and genotypes 4, 5 and 6 with a frequency of < 1%. Patients from the Northeast, Southeast and Midwest had significantly (P < 0.001) more infections with genotype 1 than patients from the Western and Southern regions. African-American patients were more likely to be infected with genotype 1 when compared with Caucasian, Hispanic or Asian Pacific Islanders (P < 0.001). Patients infected with HCV genotype 1 and mixed HCV genotypes had significantly higher serum HCV RNA concentrations when compared with HCV genotypes 2 and 3 (P < 0.001 for all comparisons).
Keywords: JOURNAL ARTICLE Caucasoid Race Female *Genotype Hepatitis C-Like Viruses/*GENETICS/PATHOGENICITY Hepatitis C, Chronic/BLOOD/ETHNOLOGY/*VIROLOGY Human Male Negroid Race RNA, Viral/BLOOD Support, Non-U.S. Gov't United States Viral Load 001030
A00A1125
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