Skip to main content

Table 2 Antibiotic resistance profile of carbapenem-resistant versus carbapenem susceptible P. aeruginosa isolates

From: Phenotypic characterization of the Egyptian isolates “extensively drug-resistant Pseudomonas aeruginosa” and detection of their metallo-β-lactamases encoding genes

Antibiotics P. aeruginosa resistance
Carbapenem resistant
(n = 59)a
Carbapenem susceptible
(n = 41)
P value
n % N %
Ciprofloxacin* 56 94.9 8 19.5 <0.05
Levofloxacin* 59 100 8 19.5 <0.05
Aztreonam 16 27.1 7 17.07 0.484213
Gentamicin* 56 94.9 14 34.1 <0.05
Amikacin* 54 91.5 12 29.2 <0.05
Ceftazidime* 49 83.08 4 9.7 <0.05
Cefepime* 59 100 15 36.5 <0.05
Piperacillin* 55 93.2 9 21.9 <0.05
Piperacillin/tazobactam* 50 84.7 5 12.1 <0.05
Imipenem 59 100 0
Meropenem 57 96.6b 0
Polymyxin B 0   0
Colistin 0   0
  1. aThe percentages of non-susceptible isolates shown include isolates in the intermediate and resistant CLSI categories. b The remaining 3.4% of isolates were meropenem susceptible. *The discrepancy in the resistance percentage among carbapenem-resistant and carbapenem susceptible is significant at p less than 0.05