Table 3.

Resistance markers for most frequently isolated microorganisms from bloodstream infections in patients in ICU. 2001–first half of 2008.

Marker	2001		2002		2003		2004		2005		2006		2007		2008
	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%
Oxacillin-resistant CNS	253	90.5	245	84.1	236	76.4	346	80.6	594	85.2	710	84.5	1113	84.8	517	78.5
Oxacillin-resistant S. aureus	146	62.3	244	63.5	296	64.9	341	58.1	369	47.2	391	43	533	43.3	216	33.4
Third-generation Cephalosporin-resistant K. pneumoniae	53	58.5	89	58.4	99	35.4	190	35.3	207	28	287	26.8	397	26.2	240	17.9
Third-generation cephalosporin-resistant E. coli	46	6.5	59	15.3	82	8.5	128	5.5	151	6.6	181	7.2	262	8.8	145	4.8
Imipenem-resistant A. baumannii	57	10.5	68	27.9	56	37.5	72	41.7	105	55.2	139	42.4	211	54.5	99	49.5
Cephthazidim-resistant P. aeruginosa	56	28.6	47	40.4	64	15.6	80	20	99	30.3	142	28.2	177	39	99	29.3
Third-generation Cephalosporin-resistant E. cloacae	39	33.3	42	40.5	41	36.6	73	17.8	93	25.8	102	29.4	154	26	77	16.9
Vancomycin-resistant E. faecalis	54	1.9	42	2.4	64	0	77	3.9	81	0	103	1.9	118	0	55	0
Imipenem-resistant K. pneumoniae	54	0	88	1.1	102	1	206	0.5	215	0.9	298	1.3	430	0.9	244	1.2