Table 4.

Resistance rates(%) of Pseudomonas aeruginosa to antimicrobial agents

Antimicrobial agent	2003–2004 (n = 1)	2005–2006 (n = 8)	2007–2008 (n = 3)	2009–2010 (n = 7)	2011–2012 (n = 14)	2013–2014 (n = 15)
Amikacin	0	25.0	0	14.3	14.3	0
Gentamicin	0	25.0	33.3	42.9	28.6	13.3
Piperacillin	0	37.5	66.7	28.6	15.4	14.3
Piperacillin/taazobactam	–	20.0	66.7	28.6	21.4	0
Cefazolin	100.0	100.0	100.0	100.0	100.0	100.0
Cefuroxime	100.0	100.0	–	100.0	100.0	100.0
Cefotaxime	–	100.0	0	75.0	100.0	100.0
Ceftazidime	0	12.5	66.7	14.3	14.3	6.7
Cefepime	–	0	0	28.6	14.3	0
Cefoxitin	100.0	100.0	100.0	–	–	100.0
Imipenem	0	0	33.3	14.3	7.7	6.7
Meropenem	–	0	50.0	66.7	27.3	0
Ciprofloxacin	0	37.5	0	14.3	21.4	13.3