Skip to main content
. 2016 Aug 5;15:45. doi: 10.1186/s12941-016-0158-9

Table 6.

Kappa values of agreement between automated identification by the VITEK®2 system, the conventional phenotypic methods, and genotypic identification

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

CoNS coagulase-negative staphylococci, NP not performed