Performance measures for the patient self-taken LVS (clinician-taken HVS as the reference standard)
| Infection | Sensitivity % (95% CI) | Specificity % (95% CI) | PPV % | NPV % | Cohen’s kappa κ (95% CI) |
|---|---|---|---|---|---|
| BV | 88.5 (68.7 to 97.0) | 95.8 (87.3 to 99.0) | 88.5 | 95.8 | 0.84 (0.72 to 0.96) |
| VVC | 95.5 (83.6 to 99.2) | 92.6 (81.3 to 97.6) | 91.5 | 96.2 | 0.88 (0.78 to 0.97) |
BV = bacterial vaginosis. CI = confidence interval. HVS = high vaginal swab. LVS = low vulvovaginal swab. NPV = negative predictive value. PPV = positive predictive value. VVC = vulvovaginal candidiasis.