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Table 4 Difference of the antimicrobial susceptibility between HV-positive and- negative of K. pneumoniae

From: Clinical and molecular characteristics of Klebsiella pneumoniae ventilator-associated pneumonia in mainland China

  No. (%) of patients susceptible  
Antimicrobial agent HV-Positive isolates HV-Negative isolates P value
n = 14 n = 29
piperacillin 8 (57.1) 9 (31.0) 0.101
Cefazolin 5 (35.7) 10 (34.4) 1.000
Cefoxitin 10 (71.4) 14 (48.3) 0.152
Cefuroxime 11 (78.6) 11(37.9) 0.012*
Ceftriaxone 12 (85.7) 12 (41.4) 0.006*
Ceftazidime 12 (85.7) 12 (41.4) 0.006*
Cefotaxime 12 (85.7) 13 (44.8) 0.011*
Cefepime 13 (92.9) 23 (79.3) 0.492
Imipenem 14 (100) 28 (96.6) 1.000
Meropenem 14 (100) 28 (96.6) 1.000
Ciprofloxacin 12 (85.7) 15 (51.7) 0.031*
Levofloxacin 12 (85.7) 16 (55.2) 0.104
Gentamicin 14 (100) 17(58.6) 0.013*
Amikacin 14 (100) 18 (62.1) 0.022*
Trimethoprim-sulfamethoxazole 12 (85.7) 17 (58.6) 0.013*
ESBLs 2 (14.3) 18 (62.1) 0.003*
  1. Values given as No. (%) of patients
  2. ESBL, extended-spectrum β-lactamase
  3. * P < 0.05 was considered to be statistically significant