Table 4.
Results of ISO_LGMN procedure and acid phosphatase test (APT).
| LGMN | APT | |
|---|---|---|
| a.) Environmental isolates | ||
| True positive results | 70 | 84 |
| True negative results | 36 | 33 |
| False positive results | 2 | 5 |
| False negative results | 19 | 5 |
| Total number of strains | 127 | 127 |
| Sensitivity % | 79 | 94 |
| Specificity % | 95 | 87 |
| % of correct identification | 83 | 92 |
| b.) Isolates from water | ||
| True positive results | 22 | 30 |
| True negative results | 16 | 13 |
| False positive results | 0 | 3 |
| False negative results | 11 | 3 |
| Total number of strains | 49 | 49 |
| Sensitivity % | 67 | 91 |
| Specificity % | 100 | 81 |
| % of correct identification | 78 | 88 |
| c.) Isolates from faeces | ||
| True positive results | 48 | 54 |
| True negative results | 20 | 20 |
| False positive results | 2 | 2 |
| False negative results | 8 | 2 |
| Total number of strains | 78 | 78 |
| Sensitivity % | 86 | 96 |
| Specificity % | 91 | 91 |
| % of correct identification | 87 | 95 |