Table 3.
Diagnostic performance values of serological testing compared with the reference standard test (UGS-positive results confirmed by real-time PCR and/or microscopy)
| Reference standard test UGS confirmed by real-time PCR and/or microscopy | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| + | − | Total | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | Cohen’s kappa coefficient (95% CI) | ||
| Diagnostic test serology | + | 24 | 158 | 182 | 88.9 (69.70- 97.09) | 68.5 (64.23- 72.53) | 13.2 (8.80- 19.18) | 99.1 (97.28- 99.78) | 0.16 (0.09- 0.22) |
| − | 3 | 344 | 347 | ||||||
| Total | 27 | 502 | 529 | ||||||
95% CI: 95% confidence interval; PPV: positive predictive value; NPV: negative predictive value; UGS: urogenital schistosomiasis