American Journal of Epidemiology Vol. 148, No. 3: 263-268
Copyright © 1998 by The Johns Hopkins University School of Hygiene and Public Health
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Incidence of Congenital Rubella Syndrome and Influence of the Rubella Vaccination Program for Schoolgirls in Japan, 19811989
1 Department of Pediatrics, Faculty of Medicine, Kyushu University Higashi-ku, Fukuoka, Japan
2 Kyushu Central Hospital of the Mutual Aid Association of Public School Teachers, Division of Pediatrics Minami-ku, Fukuoka, Japan
Reprint requests to Dr. Kohji Ueda, Department of Pediatrics, Faculty of Medicine, Kyushu University|Higashi-ku, Fukuoka 812-8582, Japan.
In 1984, the authors first conducted a nationwide survey of deaf children with a history of maternal rubella (HMR) in special schools for the deaf in Japan. The survey showed that the incidence of congenital rubella syndrome in the Japanese mainlands was similar to those in the United States and Europe. In 1993, a second nationwide survey by the authors evaluated the efficacy of the vaccination program for schoolgirls begun in 1977. This second survey yielded 272 deaf children with HMR born between 1981 and 1989. Per 100,000 annual livebirths, the incidence rates were 1.569.95 in the epidemic years 19811982 and 19871988 and 0.200.72 in the interepidemic years. During the 19871988 epidemic, the incidence rates per 100,000 livebirths were 1.52 among mothers eligible for the vaccination program and 5.527.44 among mothers not eligible, and the difference was significant. However, only 21.7% of the women who delivered children during the 19871988 rubella epidemic were eligible for the vaccination program, and because the majority of deaf children with HMR were born to mothers not eligible, a decrease in the birth rate of deaf children with HMR was not observed. These data suggested the need to introduce a new vaccine program to suppress rubella epidemics. Am J Epidemiol 1998;148:2638.
congenital defects; deafness; rubella; vaccination
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