Table 1.

Heterogeneity of populations of sitafloxacin-resistant and -susceptible isolates

SpeciesaSitafloxacin-resistant isolatesSitafloxacin-susceptible isolatesTotal
No. of strains typedNo. of distinct ribogroupsNo. of major ribogroupsbNo. of centersSimpson's indexNo. of strains typedNo. of distinct ribogroupsNo. of major ribogroupsNo. of centersSimpson's indexRibogroups Simpson's index
Pseudomonas aeruginosa(156/459)1553410220.9148323170.98520.93
Acinetobacter spp. (145/255)145167180.821411150.93210.83
  • a In parentheses are indicated the total numbers of sitafloxacin-resistant/sitafloxacin-susceptible isolates found in the susceptibility testing analysis.

  • b Major ribogroups are defined as ribogroups comprising at least four isolates.