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 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
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 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
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 | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
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 |