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Table 1 Basic data on microbiological findings within the study population

From: Comparative evaluation of the effect of different growth media on in vitro sensitivity to azithromycin in multi-drug resistant Pseudomonas aeruginosa isolated from cystic fibrosis patients

  CF patients
  n
Total 930
P. aeruginosa pos. 292
P. aeruginosa MDR pos.a 49 (=16.8% of P. aeruginosa pos.)
  MDR P. aeruginosa, b
  n %
Agec
 0–10 3 11
 11–20 2 7
 21–30 10 36
 31–40 7 25
 41–50 2 7
 > 51 4 14
Resistance to d
 Colistin 5 17
 Fosfomycin 20 69
 Aztreonam 29 100
 Gentamicin 27 93
 Tobramycin 18 62
 Amikacin 25 86
Carriage status e
 Intermittent 1 4
 Chronic 27 96
  1. a defined as combined resistance to piperacillin/tazobactame, ceftazidime, imipenem, meropenem and ciprofloxacin
  2. b N = 29 isolates from N = 28 patients, i.e. one patient had two morphologically distinct isolates
  3. c median age 27.5 years (range 7 to 70 years); n = 28 patients
  4. d categorized as resistant (i.v. application) if MIC interpreted as intermediate or resistant
  5. e chronic: > 50% P. aeruginosa positive samples within 12 months; intermittent: < 50% P. aeruginosa positive samples within 12 months; negative: > 1 year P. aeruginosa negative