Abstract
Objectives: To assess the annual mortality rate associated with fulminant hepatitis in infants before and after the mass immunization program that was launched in Taiwan in July 1984. Study design: From the National Mortality Registry System, the data on the mortality from fulminant hepatitis in infants from 1975 to 1998 were retrieved. Poisson regression analysis was used to assess the difference in average mortality from fulminant hepatitis in infants before (1975-1984) and after (1985-1998) the implementation of the mass hepatitis B vaccination program. Results: The ratio of yearly mortality from 1975 to 1998 was 1.10 (P < .001), representing a progressive decrease in the number of the cases. The average mortality associated with fulminant hepatitis in infants from 1975 to 1984 and from 1985 to 1998 was 5.36 and 1.71 per 100,000 infants, respectively. The ratio of the average mortality in the period from 1985 to 1998 to that in the period from 1975 to 1984 was 0.32 (P < .001). Conclusions: These data indicate that since the institution of a program of mass hepatitis B vaccination in Taiwan, the mortality associated with fulminant hepatitis in infants has declined significantly. (J Pediatr 2001;139:349-52)
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