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Table 2 Results of blood tests for HIV, HBV and syphilis and the estimated number of prevented congenital infections per year, 2006-2008

From: Antenatal screening for HIV, hepatitis B and syphilis in the Netherlands is effective

  HIV HBV Syphilis
Positive diagnoses in pregnancies    
   2005/'06*† 57 545 142
congenital infections in 2006 1 3 0
   2006/'07* 85 669 143
congenital infections in 2007 0 1 5
   2007/'08* 86 633 105
congenital infections in 2008 0 1 1
   Average number of diagnoses in pregnancy per year (2006-2007)* 75 615 130
Through screening newly diagnosed HIV, HBV or active syphilis per year, as percentage of the total screen-positives*ठ40% 40% 17%
Prevented children 'at risk' per year* 30 245 20
Transmission risk 20-30% 20-30% 50%
Estimated number of congenital infections prevented per year*|| 5-10 50-75 ± 10
  1. *Minimum number, based on confirmed test results only
  2. † Source: TNO-rapport 2008.
  3. ‡Sources: Stichting HIV Monitoring SHM (HIV), Osiris (HBV) and 'Research voor beleid ' - Research for policy (syphilis).
  4. § Estimate of the number of active syphilis infections [5]
  5. || Estimate based on the average transmission risk of mother to child (in the absence of treatment and/or vaccination) and the estimate of the number of new diagnoses (HIV/HBV) or active infection (syphilis) (based on women with a confirmed result)