Table 1.
Colistin AST methods compared in this study.
VITEK 2 cards were incubated and evaluated automatically by the device, all other tests were incubated at 36 ± 2°C for 16–20 hours in ambient air. McF, McFarland standard; CAMHB, cation-adjusted Muller-Hinton II broth; QC, quality control; MHA, Muller-Hinton agar; BMD, broth microdilution; FSCA, Field Safety Corrective Action.
Table 2.
Characteristics of the isolates used in this study.
Susceptibility and resistance to colistin is reported as observed in the reference in-house broth microdilution method.
Table 3.
Percent categorical agreement (CA) between comparator methods for colistin MIC determination and the reference broth microdilution method.
Table 4.
Percent essential agreement (EA) between comparator methods for colistin MIC determination and the reference broth microdilution method.