Table 4. Sensitivity, specificity, and accuracy of diagnostic tools with the Ritchie technique.
Test | Ritchie | Sensitivity % | Specificity % | PPV % | NPV % | 95% CI | P-value | ||
P | N | ||||||||
Immuno Card STAT! CGE | P | TP17 | FP14 | (100) | (83.13) | (54.84) | (100) | (0.86-0.97) | P < 0.001 |
N | FN0 | TN69 | |||||||
CerTest | P | TP17 | FP2 | (100) | (97.59) | (89.47) | (100) | (0.97-1.00) | P < 0.001 |
N | FN0 | TN81 | |||||||
Real-time PCR | P | TP17 | FP25 | (100) | (69.88) | (40.48) | (100) | (0.78-0.92) | P < 0.001 |
N | FN0 | TN58 | |||||||
Direct smears | P | TP17 | FP6 | (100) | (92.77) | (73.91) | (100) | (0.93-1.00) | P < 0.001 |
N | FN0 | TN77 |