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Relative Etiologic Role of Hepatitis B Virus and Hepatitis C Virus in Chronic Liver Diseases and Hepatocellular Carc inoma among Age-Spec i f ic Groups in Ko rea: the Poss ib Ie Presence of Non-B, Non-C Agents

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Authors
Kim, Chung Yong; Lee, Hyo-Suk; Han, Chul Ju
Issue Date
1993-03
Publisher
Seoul National University College of Medicine
Citation
Seoul J Med, Vol.34 No.1, pp. 27-33
Keywords
EtiologyAgeHBsAgAnti-HCVChronic active hepatitisLiver cirrhosisHepatocellular carcinomaKorea
Abstract
Korea is one of the endemic areas of chronic hepatitis B virus (HBV)
infection. To investigate the relative etiologic role of HBV and hepatitis C virus
(HCV) in chronic liver diseases (CLD) including hepatocellular carcinoma (HCC)
among age-specific groups in Korea, we enrolled consecutively 673 patients with
chronic active hepatitis (CAH), 677 patients with liver cirrhosis (LC) and patients
with HCC who had been diagnosed in the liver unit at Seoul National University
Hospital. HBsAg and anti-HCV were tested using commercially available
radioimmunoassay and enzyme immunoassay kits, respectively. From this study,
we were reached at suggestion for the possible presence of non-B, non-C type
CLD agent(s) by exclusion method. The prevalence rates of HBsAg were 45.3%,
62.5% and 69.3% in patients with CAH, LC and HCC, respectively. The general
prevalence rates of anti-HCV in patients with CAH, LC and HCC were 27.3%, 19.
6% and 17%, respectively, and, however, in HBsAg-negative patients with CAH,
LC and HCC those were 48.1%, 46.1% and 42.7%, respectively. The coinfection
rates of HBV and HCV in patients with CAH, LC and Hec were 1%, 2.4% and 3.
9%, respectively. The rates of CAH, LC and HCC patients who were negative for
both HBsAg and anti-HCV and therefore, serologically classified as non-B, non-C
type were 28.4%, 20.2% and 17.6%, respectively. There was a significant
differeence in mean age between B- and C-type, and Band non-B, non-C type
patients with CAH (41.7 vs 54.5 and 50.4 years), LC (48.5 vs 60.1 and 54.9
years) and HCC (51.6 vs 60.4 and 56.1 years) (p < 0.001, respectively). Before
the age of 50, the etiology of CAH and LC was almost exclusively HBV, while
over the age of 50, the etiologic role of HCV and non-B, non-C was more
predominant than that of HBV. In elderly (older than 60 years of age) patients
even with HCC, HCV played an etiologic role as important as HBV.
In conclusion, H8V is the most common etiologic agent of CLD in Korea.
However, HCV and non-B, non-C infection is a more important etiology in elderly
patients with CLD older than 50 years of age.
ISSN
0582-6802
Language
English
URI
http://hdl.handle.net/10371/5597
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College of Medicine/School of Medicine (의과대학/대학원)Dept. of Medicine (의학과)The Seoul Journal of MedicineThe Seoul Journal of Medicine Vol. 34 No.1 (1993)
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