Estimated proportion of antenatal care attendees tested and treated in different scenarios for 2008, and proposed Initiative for the Global Elimination of Congenital Syphilis target for 2015.

If a country tested 80% of all pregnant women, and 80% of those found to be seropositive received appropriate treatment, then T = 0.8×0.8 = 64%. The proposed 2015 target for the Initiative for the Global Elimination of Congenital Syphilis is that at least 90% of pregnant women are tested for syphilis and at least 90% of seropositive pregnant women receive treatment (T = 0.9×0.9 = 81%). This would apply for all regions except Europe, on the assumption that Europe would be unlikely to provide a lower standard of care than the 2008 best case scenario of T = 90%.