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Table 1 Results of blood tests for hiv, HBV and syphilis, 2006-2008

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

Year Number refusers (%) Number pregnancies tested Result positive 12 weeks* Number with confirmatory Result (%) Result confirmed positives (%)** Result negative Total Prevalence estimate 1 (minimum) Prevalence estimate 2 Prevalence estimate 3 (maximum) 95% CI (based on confirmed positives)
HIV           
2006 340 (0.2) 185.602 342 274 (80%) 81 (24%) 184.188 0.04 0.05 0.08 0.04 - 0.05
2007 350 (0.2) 185.791 327 316 (97%) 90 (27%) 183.884 0.05 0.05 0.05 0.04 - 0.06
2008 376 (0.2) 189.765 289 229 (79%) 68 (24%) 188.430 0.04 0.05 0.07 0.03 - 0.05
HBV           
2006 1 (<0.001) 185.941 966 927 (96%) 714 (74%) 184.621 0.38 0.40 0.40 0.36 - 0.41
2007 4 (<0.01) 186.137 868 848 (98%) 620 (71%) 185.015 0.33 0.34 0.34 0.31 - 0.36
2008 1 (<0.001) 190.140 932 896 (96%) 605 (65%) 189.771 0.32 0.33 0.33 0.29 - 0.34
Syphilis           
2006 1 (<0.001) 185.941 320 215 (67%) 142 (44%) 184.181 0.08 0.12 0.13 0.06 - 0.09
2007 4 (<0.01) 186.137 331 231 (70%) 181 (55%) 185.719 0.10 0.14 0.15 0.08 - 0.11
2008 2 (<0.001) 190.139 359 241 (67%) 197 (55%) 189.447 0.10 0.16 0.17 0.09 - 0.12
  1. Excludes pregnancies not carried to term (spontaneous or through surgical abortion). HBV: 15 (2008), 22 (2007), 22 (2006); HIV: 1 (2008), 0 (2007), 1 (2006); syphilis: 1 (2008), 1 (2007), 3 (2006).