Korean J Blood Transfus.  1999 May;10(1):1-4.

Seroincidence of Hepatitis B Virus among Korean Blood Donors

• Oh HB
• Hwang BK
• Kim SI

Abstract

BACKGROUND
Seroincidence of hepatitis B virus (HBV) among Korean blood donors has not been reported. This study was conducted to calculate the seroincidence of HBV among blood donors and to estimate the risk of post-transfusion hepatitis B by donated blood in window period of infection.
METHODS
HBV seroincidence was calculated among repeat-donors who had donated from Nov. 1994 through Dec. 1996. To calculate the person-years, the database of the Korean National Red Cross was used in which results for HBsAg enzyme immunoassay were filed up. The observed incidence was adjusted by interdonation interval of incident cases, who were defined as donors showing seroconversion. The risk of post-transfusion hepatitis B by donated bloods in window period of infection was estimated.
RESULTS
HBV seroincidence was estimated to be 180.85/100,000 person-years. This was adjusted as 602.83/100,000 person-years by considering interdonation intervals. The risk of post-transfusion hepatitis B was estimated to be 974 units per one million of whole blood units due to be in window period of infection.
CONCLUSION
The estimated seroincidence of HBV among Korean blood donors and thereby the risk of HBV transmission by donated bloods in window period of infection was about 50 to 60 times higher than those of Japan and United States of America.

Keyword

HBV; Seroincidence; Post-transfusion hepatitis B; Korean blood donors

MeSH Terms

Americas
Blood Donors*
Hepatitis B Surface Antigens
Hepatitis B virus*
Hepatitis B*
Hepatitis*
Humans
Immunoenzyme Techniques
Incidence
Japan
Red Cross
Tissue Donors
United States
Hepatitis B Surface Antigens