Nosocomial methicillin resistant Staphylococcus aureus pneumonia - epidemiology and trends based on data of a network of 586 German ICUs (2005-2009)

Table 1 The top five pathogens associated with ventilator-associated pneumonia and MRSA resistance percentage in different surveillance systems

	KISS n = 586 ICUs The Hospital Infection Surveillance System, Germany, 2005-2009			NHSN n = 1040 ICUs National Healthcare Safety Network, USA, 2006-2007 [9]			INICC n = 173 ICUs International Nosocomial Infection Control Consortium, multinational, 2003-2008 [7]
	Rank	Number (%) of pathogenic isolates ^#	MRSA resistance percentage ^a	Rank	Number (%) of pathogenic isolates	MRSA resistance percentage ^a	Rank	Number (%) of pathogenic isolates*	MRSA resistance percentage ^a
Staphylococcus aureus	1	2411 (19.8%)	37.0%	1	1426 (24.4%)	54.4%	3	715 (15.9%)	77.5%
Pseudomonas aeruginosa	2	2195 (18.0%)		2	972 (16.3%)		1	1636 (36.4%)
Escherichia coli	3	1449 (11.9%)					5	299 (6.7%)
Klebsiella species	4	1474 (12.1%)		3	574 (9.7%)^b		4	632 (14.1%)^c
Enterobacter species	5	979 (8.0%)		4	498 (8.4%)
Acinetobacter baumannii				4	498 (8.4%)		2	1209 (26.9%)

^aPercentage of pathogenic isolates tested that were resistant; ^b Klebsiella pneumonia and oxytoca; ^cdata for Klebsiella pneumoniae; ^#percentage of the total amount of pathogens (without enterococcus spp. or Candida spp.); *total amount of pathogens n = 4491 derived from table 16 [7]

ISSN: 2047-783X