Table 3. Characteristics of non-fermenter isolates submitted for CPE during the first halves of 2012 and 2013.

				MIC >0.25 μg/ml			MIC ≤0.25 μg/ml
Non-fermenter species (n)	PCR	N	%	n	CIM+		n	CIM+
Pseudomonas aeruginosa (320)	IMP	4	1.3	4	4
	KPC
	NDM
	OXA-48
	VIM	43	13.4	43	43
	pos.	47	14.7	47	47
	neg.	273	85.3	268	1		5	0
Other Pseudomonas spp. (67)	IMP	2	3.0	2	2
	KPC
	NDM
	OXA-48
	VIM	6	9.0	6	6
	pos.	8	11.9	8	8
	neg.	59	88.1	58	5		1	0
Acinetobacter baumannii (18)	IMP
	KPC
	NDM	1	5.6	1	1
	OXA-23*	12	66.7	12	10
	OXA-48
	VIM
	pos.	12	66.7	12	10**
	neg.	6	33.3	6	1
Other Acinetobacter spp. (6)	IMP
	KPC
	NDM
	OXA-23*
	OXA-48
	VIM
	pos.
	neg.	6	100.0	6	0
All non-fermenters (411)	IMP	6	1.5	6	6
	KPC
	NDM	1	0.2	1	1
	OXA-23*	12	2.4	12	10
	OXA-48
	VIM	49	11.9	49	49
	pos.	67	16.3	67	65
	neg.	344	83.7	338	7		6	0

N, total number of isolates

n, number of isolates within the MIC-category

* OXA-23 PCR was performed on Acinetobacter isolates only

** One Acinetobacter baumannii isolate was found positive for both NDM and OXA-23