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Diagnostic performance of real-time PCR compared with microscopy
| Reference test: microscopy | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| + | − | Total | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | Kappa coefficient (95% CI) | ||
| Diagnostic testReal-time PCR | + | 20 | 8 | 28 | 83.3 (61.81–94.52) | 98.6 (97.19–99.36) | 71.4 (51.13–86.05) | 99.3 (98.11–99.78) | 0.76 (0.62–0.89) |
| − | 4 | 572 | 576 | ||||||
| Total | 24 | 580 | 604 | ||||||
95% CI: 95% confidence interval; PPV: positive predictive value; NPV: negative predictive value; UGS: urogenital schistosomiasis
