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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
- Issue Date
- 1989-12
- Citation
- Seoul J Med, Vol.30 No.4, pp. 243-248
- Keywords
- Longitudinal study ; HBsAg ; Radioimmunoassay ; Negative conversion rate ; Male 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
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