Table. 2.

Pseudomonas aeruginosa isolates with results of discrepant colistin susceptibility in two methods

No. Sensititre* MicroScan* Vitek-2



MIC (μg/mL) R/I/S MIC (μg/mL) R/I/S MIC (μg/mL) R/I/S
D13 2 I >4 R ≤0.5 I
F1 2 I 4 R ≤0.5 I
F5 2 I 4 R ≤0.5 I
H7 2 I 4 R ≤0.5 I
H11 2 I >4 R ≤0.5 I
A20 4 R ≤2 I ≤0.5 I
B9 4 R ≤2 I ≤0.5 I
B19 4 R ≤2 I ≤0.5 I
D7 4 R ≤2 I ≤0.5 I
D10 4 R ≤2 I ≤0.5 I
E6 4 R ≤2 I ≤0.5 I
E22 4 R ≤2 I ≤0.5 I
F18 4 R ≤2 I ≤0.5 I
I20 4 R ≤2 I ≤0.5 I

Abbreviations: MIC, minimal inhibitory concentration; R, resistant; I, intermediate; S, susceptibility.

*Cohen’s kappa coefficient (susceptibility category of Sensititre and MicroScan)=–0.849 (P<0.001).

Lab Med Qual Assur 2022;44:36~39 https://doi.org/10.15263/jlmqa.2022.44.1.36
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