Table 6 Kappa values of agreement between automated identification by the VITEK®2 system, the conventional phenotypic methods, and genotypic identification
From: Comparison of methods for the identification of microorganisms isolated from blood cultures
Group | Number of isolates | Kappa | |
|---|---|---|---|
Conventional method × genotypic method | Automated method × genotypic method | ||
Gram-positive cocci | 255 | 0.969 | 0.904 |
CoNS | 186 | 0.969 | 0.886 |
Gram-negative bacilli | 165 | 0.993 | 1.000 |
Gram-positive bacilli | 5 | NP | 0 |
Yeasts | 15 | 1.000 | 1.000 |
Total | 400 | 0.958 | 0.945 |