TABLE 2

Percentage of isolates with nonsusceptible phenotypes per antibiotic

Antibiotic% of isolates
E. coli (n = 2,919)K. pneumoniae (n = 1,974)P. mirabilis (n = 1,150)P. aeruginosa (n = 1,484)
Gentamicin33584060
Tobramycin46763851
Ciprofloxacin68815867
Levofloxacin67724769
Trimethoprim-sulfamethoxazole587563Intrinsic resistance
Imipenem739Intrinsic resistance64
Ertapenem13511Intrinsic resistance
Cefazolin749049Intrinsic resistance
Cefepime68842969
Cefotaxime718641Intrinsic resistance
Ceftazidime55842262
Ceftriaxone718741Intrinsic resistance
Ampicillin88Intrinsic resistance72Intrinsic resistance
Aztreonam67841364