Table 2.
Contingency table: relationship between micromethod and xenodiagnosis*
| Micromethod | Xenodiagnosis | Total | |
|---|---|---|---|
| Positive | Negative | ||
| Positive | 251 | 0 | 251 |
| Negative | 16 | 1657 | 1673 |
| Total | 267 | 1657 | 1924 |
*
The sensitivity of the micromethod vis-à-vis xenodiagnosis is 0.938 (confidence interval [CI] 95%, 0.925–0.940) and the specificity is 1 (CI 95%, 0.998–1). The positive predictive value was 0.998 (CI 95%, 0.984–1) and negative predictive value, 0.990 (CI 95%, 0.988–1). Kappa index: 96.4% (CI 95%, 0.9469–0.9817).