Sensitivity, specificity, NPV and PPV of syndromic management of genital tract infections at baseline and third trimester of pregnancy
| Sensitivity (%) | Specificity (%) | NPV | PPV | |
| Baseline (12–28 weeks) | 106/244 (43.4) | 302/508 (59.5) | 302/440 (68.6) | 106/312 (34.0) |
| Repeat visit (>28 weeks) | 35/184 (19.0) | 209/276 (75.7) | 209/358 (58.4) | 35/102 (34.3) |
NPV, negative predictive value; PPV, positive predictive value.