Table 2 Comparing results of HIV Sentinel Survey (HSS) and conventional syphilis testing strategies using selected archived sera from 2007 HSS in Ghana

RPR+/TPHA+ (Active infection)

168 (16.8)^a

42 (3.8)

0 (0)

3 (8.3)

213 (9.6)

RPR+/TPHA−(Biological false positive reaction)

0 (0)^a

11 (1.0)

0 (0)

0 (0)

11 (0.5)

RPR−/TPHA+ (Past/treated infection)

520 (51.9)

70 (6.2)

30 (50.8)

20 (55.6)

640 (28.9)

RPR−/TPHA−(Uninfected)

313 (31.3)

995 (89.0)

29 (49.2)

13 (36.1)

1,350 (61.0)

Total

1,001 (100)

1,118 (100)

59 (100)

36 (100)

2,214 (100)