TABLE 3.
Summary of direct fecal testing results
| Parameter | Value |
|||
|---|---|---|---|---|
| Shiga toxin 1 (n = 531) |
Shiga toxin 2 (n = 531) |
|||
| Vero+ | Vero− | Vero+ | Vero− | |
| No. of STQC+ samples | 7a | 0 | 3a | 0 |
| No. of STQC− samples | 0 | 524 | 0 | 528 |
| Sensitivity (%) | 100.0 | 100.0 | ||
| Specificity (%) | 100.0 | 100.0 | ||
| PPVb (%) | 100.0 | 100.0 | ||
| NPVc (%) | 100.0 | 100.0 | ||
| Correlation (%) | 100.0 | 100.0 | ||
a
Nine positive samples were identified, one of which was positive for both Stx1 and Stx2, resulting in 10 positive results.
b
PPV, positive predictive value.
c
NPV, negative predictive value.