Table 1 Adult syphilis prevalence data (1990–2016), available in the Spectrum-STI global database.
Average year | Number of studies, surveys, and years of routine ANC screening | Number of positive samples | Number of samples tested | Unweighted average prevalence (%) | |
|---|---|---|---|---|---|
Data type | |||||
ANC routine | 2012 | 645 | 1,530,591 | 161,090,586 | 0.95 |
ANC survey | 2005 | 605 | 113,813 | 8,422,062 | 1.35 |
Women survey | 2003 | 93 | 13,006 | 2,333,441 | 0.56 |
Men survey | 2003 | 78 | 5,184 | 247,945 | 2.09 |
Men + Women survey | 2005 | 11 | 64,659 | 3,039,211 | 2.13 |
Blood donors, Women | 2007 | 2 | 3 | 693 | 0.43 |
Blood donors, Men | 2010 | 12 | 1,628 | 250,398 | 0.65 |
Blood donors, Men + Women | 2012 | 130 | 147,715 | 92,247,011 | 0.16 |
Diagnostic test | |||||
RPR + TPHA | 2008 | 819 | 652,567 | 108,529,201 | 0.60 |
TPHA | 2006 | 71 | 107,382 | 12,299,956 | 0.87 |
RPR | 2007 | 353 | 592,635 | 42,606,321 | 1.39 |
Rapid treponemal-based assay | 2013 | 79 | 143,180 | 10,107,457 | 1.42 |
Test unknown | 2011 | 254 | 380,835 | 94,088,412 | 0.40 |
WHO world region | |||||
African Region | 2006 | 633 | 1,231,508 | 41,757,009 | 2.95 |
Region of the Americas | 2011 | 276 | 186,176 | 25,142,548 | 0.74 |
Eastern Mediterranean Region | 2010 | 130 | 93,804 | 16,899,247 | 0.56 |
European Region | 2011 | 193 | 72,373 | 65,822,040 | 0.11 |
South-East Asia Region | 2008 | 133 | 106,639 | 27,208,629 | 0.39 |
Western Pacific Region | 2009 | 211 | 186,099 | 90,801,873 | 0.20 |
All data points | 2,008 | 1,576 | 1,876,599 | 267,631,346 | 0.70 |
