Comparison of NaCl Minimal Inhibitory Concentration (MIC), Minimal Bactericidal Concentration (MBC) and Killing quotient (KQ) distributions for subgroups of <i>P. aeruginosa</i> CF isolates according to mucoid characteristic, antimicrobial susceptibility pattern, ability to form biofilm and patient

MIC50 and MIC90 values were defined as the lowest concentration of NaCl at which 50% and 90% of the isolates were inhibited, respectively. aOnly isolates exhibiting MBC values within tested range were considered. b5 isolates recovered in one patient. cisolates were randomly selected. dComparison of MIC, MBC and KQ distribution between subgroups was performed with Mann-Whitney’s test, with the exception of the evaluation depending on biofilm producer groups, assessed by the Kruskal-Wallis’ test, and Spearman correlation coefficient (Rs) when Kruskal-Wallis’ test was positive. A P value ≤0.05 was considered to reflect significance and was indicated in bold type. ND, not determined either because only one isolate or one patient was included in the sub-population, or because one isolate exhibiting a MBC value within the tested range.