To determine relationships of supposed risk factors to positives for HBsAg and Anti-HBs and also relationships of subjective symptoms to positives for HBsAg and Anti-HBs, study of 658 people working in the hospital, university, bank and other office was performed.
Positive rate fa . 3BsAg was about 7.9% and positive rate for Anti-HBs was about 20.0%.
Odds ratio of HBsAg was high and significant in individuals who are married and who have previous hepatitis B(P<0.001), medical personnel in family, more than 4 people in a room(0.01 01
Odds ratio of Anti-HBs was also significant in individuals who have previous hepatitis B, liver disease in family, more than 4 people in a room (0.01
Transmission of HBV may be very closely related to familly aggregation factors.
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