Repeat and incident genital tract infections at follow-up visit (third trimester of pregnancy) by age category
| N/A | All women | 15–19 years | 20–24 years | >25 years | 20–24 vs 15–19 years | >25 vs 15–19 years |
| (n=462) Pos/tested (%) | (n=106) Pos/tested (%) | (n=173) Pos/tested (%) | (n=183) Pos/tested (%) | OR (95% CI) P value | OR (95% CI) P value | |
| Trichomonas vaginalis | ||||||
| Repeat infection | 10/87 (11.5) | 1/10 (10.0) | 3/38 (7.9) | 6/39 (15.4) | 0.8 (0.1 to 8.3) 1.00 | 1.6 (0.2 to 15.4) 1.00 |
| New infection | 58/375 (15.5) | 19/96 (19.8) | 25/135 (18.5) | 14/144 (9.7) | 0.9 (0.5 to 1.8) 0.87 | 0.4 (0.2 to 0.9) 0.03* |
| Incidence rate | 9.6/100 py | 14.2/100 py | 11.1/100 py | 5.7/100 py | ||
| Neisseria gonorrhoeae | ||||||
| Repeat infection | 3/32 (9.4) | 0/5 (0) | 2/12 (16.7) | N/A | ||
| New infection | 56/430 (13.0) | 14/101 (13.9) | 22/161 (13.7) | 20/168 (11.9) | 0.9 (0.5 to 2.0) 1.0 | 0.8 (0.4 to 1.7) 0.71 |
| Incidence rate | 9.3/100 py | 10.5/100 py | 9.8/100 py | 8.1/100 py | ||
| Chlamydia trachomatis | ||||||
| Repeat infection | 6/50 (12.0) | 1/10 (10.0) | 2/23 (8.7) | 3/17 (17.7) | 0.9 (0.1 to 10.7) 1.00 | 1.9 (0.2 to 21.5) 1.00 |
| New infection | 70/412 (17.0) | 12/96 (12.5) | 27/150 (18.0) | 31/166 (18.7) | 1.5 (0.7 to 3.2) 0.29 | 1.6 (0.8 to 3.3) 0.23 |
| Incidence rate | 11.6/100 py | 9.0/100 py | 12.0/100 py | 12.6/100 py | ||
| Mycoplasma genitalium | ||||||
| Repeat infection | 0/19 | 0/6 | 0/6 | 0/7 | N/A | N/A |
| New infection | 21/443 (4.7) | 2/100 (2.0) | 8/167 (4.8) | 5/176 (2.8) | 2.5 (0.5 to 11.8) 0.33 | 1.4 (0.3 to 7.5) 1.00 |
| Incidence rate | 3.5/100 py | 1.5/100 py | 3.6/100 py | 2.0/100 py | ||
| Treponema pallidum* | ||||||
| Missing results | 157 | 32 | 65 | 60 | N/A | N/A |
| Repeat infection | 0/1 | 0 | 0 | 0/1 | ||
| New infection | 1/304 (0.3) | 0/74 (0.0) | 0/108 (0.0) | 1/122 (0.8) | N/A | N/A |
| Incidence rate | 0.2/100 py | 0 | 0 | 0.4/100 py | ||
| Women positive for any STI at baseline and at repeat visit | 66/170 (38.8) | 11/29 (37.9) | 27/66 (40.9) | 28/75 (37.3) | 1.1 (0.5 to 2.8) 0.82 | 0.9 (0.4 to 2.4) 1.00 |
| Women negative for any STI at baseline and positive at repeat visit | 118/292 (40.4) | 32/77 (41.6) | 46/107 (43.0) | 40/108 (37.0) | 1.1 (0.6 to 1.9) 0.88 | 0.8 (0.5 to 1.5) 0.54 |
| Incidence rate | 19.5/100 py | 23.9/100 py | 20.5/100 py | 16.2/100 py | ||
| HIV-1 | ||||||
| New infection | 7/462 (1.5) | 1/106 (0.9) | 5/173 (2.9) | 1/183 (0.5) | 3.1 (0.4 to 21.1) 0.41 | 0.6 (0.04 to 9.3) 1.00 |
| Incidence rate | 1.2/100 py | 0.7/100 py | 2.2/100 py | 0.4/100 py | ||
*Missing results for repeat visits; depended on facility-based routine testing.
py, person years; STI, sexually transmitted infection.