Table 5 Effect of blood on sensitivity and specificity estimates (plus 95% confidence intervals) in a subset of South African samples
Test | Measure | Blood-stained sample | |
|---|---|---|---|
Yes | No | ||
Chlamydia | Sensitivity | 94.4% (84.6–98.9) | 85.63 (81.5–89.2) |
Specificity | 96.6% (89.6–99.2) | 97.56 (96.2–98.5) | |
Gonorrhoea | Sensitivity | 100% (84.6–100) | 89.04 (82.8–93.6) |
Specificity | 96.4% (91.1–99.0) | 99.18 (98.4–99.6) | |
Trichomoniasis | Sensitivity | 71.4% (51.3–86.8) | 63.57 (57.5–69.3) |
Specificity | 96.5% (91.3–99.0) | 99.22 (98.4–99.7) |