Table 1.

Development of Enterobacteriaceae resistance to selected antibiotics in the UHO in 2000–2011 (in percentages)

		2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
CPR	KLPN	18	22	19	14	14	16	11	20	42	39	41	41
	ESCO	4	4	2	2	2	3	4	10	11	12	12	11
	ENCL	15	18	22	21	24	15	15	22	30	23	35	32
	PRMI	4	6	2	2	2	2	2	2	2	2	2	2
CTX	KLPN	5	7	6	5	11	12	8	14	38	37	39	40
	ESCO	1	1	1	1	1	1	2	7	9	11	11	10
	ENCL	10	18	23	23	24	18	17	24	29	23	35	32
	PRMI	1	1	1	1	0	1	1	0	0	1	1	1
CTZ	KLPN	5	7	6	7	12	17	24	24	42	37	40	40
	ESCO	1	1	1	1	2	2	3	8	10	11	11	10
	ENCL	6	18	23	26	24	19	17	26	30	23	35	32
	PRMI	2	1	1	0	1	0	0	1	0	1	1	1
CPM	KLPN	NT	5	4	3	4	3	2	11	34	30	36	36
	ESCO	NT	1	0	0	1	0	1	6	8	10	10	9
	ENCL	NT	8	5	1	4	1	2	2	6	8	5	13
	PRMI	NT	1	1	0	0	1	0	0	0	1	0	0
MER	KLPN	0	0	0	0	1	1	0	0	0	0	0	1
	ESCO	0	0	0	0	0	0	1	1	0	0	0	0
	ENCL	0	3	0	2	0	2	1	1	1	1	0	0
	PRMI	0	0	1	0	0	0	1	0	0	0	0	0
PPT	KLPN	12	19	13	10	11	12	23	31	41	40	43	42
	ESCO	1	2	2	2	2	2	3	9	9	12	12	11
	ENCL	7	13	27	17	16	10	9	20	29	23	35	33
	PRMI	2	1	1	1	1	1	1	1	1	1	1	1
OFL	KLPN	6	8	15	10	10	11	29	28	30	36	38	41
	ESCO	3	5	5	8	10	13	15	19	22	21	23	21
	ENCL	3	6	5	2	3	4	3	6	7	6	15	10
	PRMI	11	14	14	17	19	17	22	29	33	34	35	33
CIP	KLPN	5	10	17	13	10	13	31	30	46	40	42	44
	ESCO	4	6	6	10	11	14	17	22	26	23	26	23
	ENCL	2	6	5	1	4	4	2	7	9	6	17	11
	PRMI	7	16	17	20	18	16	23	29	36	37	39	36
GEN	KLPN	12	15	17	17	19	17	17	18	35	32	37	37
	ESCO	3	4	4	4	5	7	6	8	9	8	8	7
	ENCL	15	5	0	4	2	4	1	5	8	4	6	15
	PRMI	48	39	30	23	22	21	18	17	19	21	20	20
AMI	KLPN	2	6	7	5	3	8	4	5	12	8	12	8
	ESCO	1	1	1	0	0	0	1	2	2	2	5	4
	ENCL	2	2	1	1	0	0	1	2	2	2	2	2
	PRMI	2	5	4	2	2	1	1	2	5	2	3	1

Legend: CPR - cefoperazone, CTX - cefotaxime, CTZ - ceftazidime, CPM - cefepime, MER - meropenem, PPT - piperacillin/tazobactam, OFL - ofloxacin, CIP - ciprofloxacin, GEN - gentamicin, AMI - amikacin, KLPN - Klebsiella pneumoniae, ESCO - Escherichia coli, ENCL - Enterobacter cloacae, PRMI - Proteus mirabilis, NT - not tested.