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Evaluation of the hepatitis B antenatal screening and neonatal immunization program in Amsterdam, 1993-1998
J E van Steenbergen1, A Leentvaar-Kuijpers, D Baayen
1Cluster Infectious Diseases, Municipal Health Service Amsterdam, GG & GD, P.O. Box 2220, 1000 CE, Amsterdam, The Netherlands.
Abstract:
In the enhanced antenatal hepatitis B screening and neonatal immunization program in Amsterdam, 691 hepatitis B surface antigen (HBsAg) positive expectant mothers were reported in the period 1993-1998. The coverage of the screening was calculated at 97%. HBsAg-prevalence was high in women from Ghana and South-East Asia, and lowest in Dutch women. Hepatitis B immune globulin (HBIg) was administered within 24h to 95.9% of the neonates; 99.7% completed the vaccination series. About 6 weeks after the third vaccination the titer antiHBs was > or =100 IU/l in 85% of children; in 12% the titers were 10-100 IU/l; 3% had titers <10 IU/l, of whom 3/521 initially had HBsAg. Low birth weight (OR 3.77), being a boy (OR 1.64) and country of origin were predictors of low postvaccination titers. Coordinated by 0.5 full time equivalent (fte) additional staff, the program was relatively cheap and successful.