Table 2.
Results of VDRL, Treponema pallidum hemagglutination positivity, and biological false positive reactions in different groups of female patients
| Syphilis serology result | ANC, n=34,492 (%) | STI clinic, n=3072 (%) | Other (OPD/ward), n=12,466 (%) | Total females, n=50,030 (%) |
|---|---|---|---|---|
| VDRL positive | 153 (0.44) | 64 (2.08) | 151 (1.21) | 368 (0.74) |
| VDRL titer | ||||
| <1:8 | 132 (0.38) | 45 (1.46) | 117 (0.94) | 294 (0.59) |
| ≥1:8 | 23 (0.07) | 19 (0.61) | 34 (0.27) | 76 (0.15) |
| TPHA positive | 116 (0.34) | 59 (1.92) | 144 (1.16) | 319 (0.64) |
| BFP reactions | 37 (0.11) | 5 (0.16) | 7 (0.06) | 49 (0.1) |
TPHA=Treponema pallidum hemagglutination; BFP=Biological false positive; ANC=Antenatal case; STI=Sexually transmitted infection; OPD=Outpatient department