Table 1.
STI prevalence.
| Sample | Test | Pathogen | No. Tested | No. of positives with symptoms (%) | No. of positives without symptoms (%) | No. of positives (total) | Prevalence % (95% CI) |
|---|---|---|---|---|---|---|---|
| Vaginal swab | Gen-Probe APTIMA Combo II | Neisseria gonorrhoeae (GC) | 417 | 39 (66.1) | 20 (33.9) | 59 | 14.1 (10.8–17.5) |
| Chlamydia trachomatis (CT) | 417 | 46 (78.7) | 21 (31.3) | 67 | 16.1 (12.5–19.6) | ||
| GC and/or CT | 417 | 74 (67.9) | 35 (32.1) | 109 | 26.1 (21.9–30.4) | ||
|
| |||||||
| Vaginal swab | Gram stain Nugent's criteria | Bacterial vaginosis | 396 | 182 (64.8) | 99 (35.2) | 281 | 71.0 (66.5–75.5) |
| PCR | Trichomonas vaginalis | 399 | 80 (64.5) | 44 (35.5) | 124 | 31.1 (26.5–35.6) | |
| KOH mount | Candida spp. | 402 | 62 (72.9) | 23 (27.1) | 85 | 21.1 (17.3–25.5) | |
|
| |||||||
| Ulcer swab | mPCR | Treponema pallidum | 12 | 6 | |||
| Haemophilus ducreyi | 12 | 0 | |||||
| Herpes Simplex Virus (HSV) | 12 | 1 | |||||
|
| |||||||
| Serum | RPR + TPHA | Syphilis serology | 416 | 42 | 10.1 (7.4–13.4) | ||
| High-titer syphilis (≥1 : 8) | 416 | 24 | 5.8 (3.7–8.5) | ||||
| IgG serology | HSV-2 | 400 | 307 | 76.8 (72.3–80.8) | |||