Field performance for detection of HIV antibodies using a dual HIV/syphilis test
| Number of samples | Total | Sensitivity (95% CI) | Specificity (95% CI) | κ Coefficient* (95% CI) | ||
|---|---|---|---|---|---|---|
| HIV component | Ref test + | Ref test − | 99.1% | 99.4% | 0.89 | |
| Dual test + | 104 | 2 | 106 | (94.8% to 100%) | (97.7% to 99.9%) | (0.85 to 0.94) |
| Dual test − | 1 | 308 | 309 | |||
| Total | 105 | 310 | 415 | |||
*Cohen's κ statistic was calculated to determine the concordance between the reference test and the test under evaluation.