Phenotype-genotype correlations among carbapenem-resistant Enterobacterales recovered from four Egyptian hospitals with the report of SPM carbapenemase

Table 2 Distribution of Enterobacterales isolates (n = 77) according to minimum inhibitory concentration (MIC) of meropenem with the corresponding CPases-encoding genes

Ambler class CPases*	Meropenem MIC (µg/ml)								Median MIC (µg/ml)
Ambler class CPases*	4	8	16	32	64	128	> 128	MIC₅₀	Median MIC (µg/ml)
Class A or B carbapenemases	1	–	6	1	2	12	17	128	128
Classes A and B carbapenemases	1	–	–	1	–	3	13	> 128	256
Class D carbapenemases	–	–	1	2	1	2	2	64	96
Classes B and D carbapenemases	–	1	1	2	4	3	1	64	64

Kruskal–Wallis test H (3) = 12.7016, p = 0.005328
^*Ambler class A: bla_KPC, class B: bla_VIM, bla_IMP, bla_SPM, bla_NDM and class D: bla_OXA-48-like

ISSN: 2047-2994