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Longitudinal Study on the Negative Conversion Rate of HBsAg Among Male Adults in Korea
B형간염 바이러스 표면항원(HBsAg)의 전환양상에 관한 경시적 연구

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Authors
Park, Byung-Joo
Issue Date
1989-12
Publisher
Seoul National University College of Medicine
Citation
Seoul J Med, Vol.30 No.4, pp. 243-248
Keywords
Longitudinal studyHBsAgRadioimmunoassayNegative conversion rateMale adult in Korea
Abstract
The negative conversion rate of HBsAg among adult males in Korea was
estimated during a two-year follow-up study on a fixed cohort of 64 HBsAg positives tested
by radioimmunoassay.
The nagative conversion rate of HBsAg was 35.9% with its 95% Confidence Interval (CI)
of 24.6-49.0°;;). The difference of rates estimated by age was not statistically significant, but
the geometric mean titers of HBsAg decreased significantly by age. According to the ratio
unit (RU) of HBsAg at enrollment, an inversed relationship between the ratio unit and the
negative conversion rate was observed. Among in the less than 10 RU group, the negative
conversion rate was 75% (95% CI: 50.6-90.4); among in the 10-49 RU group and in the
larger than 50 RU group were 29.4% (95% CI: 11.4-55.9) and 11.1% (95% CI:
2.9-30.3), respectively.
ISSN
0582-6802
Language
English
URI
https://hdl.handle.net/10371/5603
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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. 30 No.4 (1989)
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