Performance of the PATH GC-Check rapid test in the diagnosis of gonococcal infection among female sex workers in Benin compared to a reference standard of positive Amplicor PCR for N gonorrhoeae confirmed by a 16SrRNA PCR according to type of sample and city of recruitment, 2003–04
| Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | PPV (%) | NPV (%) | |
|---|---|---|---|---|
| CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value. | ||||
| For the 2 cities combined | ||||
| Cervical swab (n = 1084) | 35/50 (70.0) (55.4 to 82.1) | 1005/1014 (97.2) (96.0 to 98.1) | 35/64 (54.7) | 1005/1020 (98.5) |
| Vaginal swab (n = 759) | 20/37 (54.1) (36.9 to 70.5) | 709/722 (98.2) (96.9 to 99.0) | 20/35 (60.6) | 709/726 (97.7) |
| For Porto-Novo | ||||
| Cervical swab (n = 208) | 5/13 (38.5) (13.9 to 68.4) | 187/195 (95.9) (92.1 to 98.2) | 5/13 (38.5) | 187/195 (95.9) |
| Vaginal swab (n = 143) | 3/10 (30.0) (6.7 to 65.2) | 130/133 (97.8) (93.5 to 99.5) | 3/6 (50.0) | 130/137 (94.9) |
| For Cotonou | ||||
| Cervical swab (n = 876) | 30/37 (81.1) (64.8 to 92.0) | 818/839 (97.5) (96.2 to 98.4) | 30/51 (58.8) | 818/825 (99.1) |
| Vaginal swab (n = 616) | 17/27 (62.9) (42.4 to 80.6) | 579/589 (98.3) (96.9 to 99.2) | 17/27 (62.9) | 579/589 (98.3) |