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. 2019 Nov 28;23:383. doi: 10.1186/s13054-019-2627-y

Table 4.

Twenty-eight-day mortality per pathogen minimum inhibitory concentration (MIC) in the 79 episodes of A. baumannii, P. aeruginosa, or K. pneumoniae isolated in respiratory samples obtained at baseline

Colistin + levofloxacin group (n = 120), death/total number of cases (%) Meropenem + levofloxacin group (n = 112), death/total number of cases (%) p value
VAP caused by A. baumannii, P. aeruginosa, and K. pneumoniae (n = 79) 40 (48.8) 39 (52) 0.811
MIC distribution
 Meropenem MIC
  ≤ 2 mg/l—susceptible 4/16 (25) 5/18 (27.8) 0.885
  > 2–8 mg/l—intermediate 0/4 (0) 0/5 (0)
  > 8 mg/l—resistant 5/20 (25) 6/16 (37.5) 0.419
 Colistin MIC
  ≤ 2 mg/l—susceptible 9/35 (25.7) 8/32 (25) 0.947
  > 2 mg/l—resistant 0/5 (0) 3/7 (42.9) 0.091

MIC minimum inhibitory concentration, VAP ventilator-associated pneumonia