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Sensitivity, specificity, negative predictive value, and positive predictive value of Crystal VC RDT compared with stool culture for V. cholerae
| RDT result | Culture result | ||
|---|---|---|---|
| Positive | Negative | Total | |
| Positive | 457 | 54 | 511 |
| Negative | 21 | 209 | 230 |
| Total | 478 | 263 | 741 |
Sensitivity: 457/478 = 95.6%. Specificity: 209/263 = 79.5%. Positive predictive value: 457/511 = 89.4%. Negative predictive value: 209/230 = 91.0%.
