| measuring the impact of hepatitis a virus in chinese cities: a life table approach. | the infection of hepatitis a virus is an important public health problem in china. in 1990, a survey on seroprevalence of anti-hepatitis a was conducted in eight large cities of population size between one to four million. the results were used to analyze the impact of hepatitis a. in our study, we used life table techniques to determine the impact that the hepatitis a virus (hav) has on these eight cities by computing the expected years of life with anti-hepatitis a virus. we compared the resul ... | 2003 | 15038682 |