Incidence of hepatitis among students at a university in Taiwan

American Journal of Epidemiology
R P BeasleyS J Twu

Abstract

The incidence of hepatitis in a general open population of Asian adults was estimated for the first time in this study. A group of 2445 students were first tested when they enrolled at National Taiwan University in 1977; approximately one third were susceptible to hepatitis A and another third to hepatitis B. Most of these students (92%) were retested shortly before their graduation in 1981 to determine the frequency of serologic conversions and clinical hepatitis which had occurred in the 3 1/2 years since they had entered the university. Among 704 susceptible to hepatitis A, 12 (1.7%) had undergone serologic conversions, 33% of which were associated with clinical illness diagnosed as hepatitis. Among 738 susceptible to hepatitis B, 39 (5.3%) had undergone serologic conversions, 12.8% of which were associated with clinical hepatitis. The annual incidence of new infections was 0.5% for hepatitis A and 1.5% for hepatitis B. An additional eight students among the 17 who had clinical hepatitis had no associated conversion of hepatitis A or hepatitis B markers, and were considered to have non-A, non-B hepatitis. No factors could be identified which were predictive of hepatitis risk. No difference in incidence was observed according...Continue Reading

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