FIG. 6.

Comparisons across antibiotic concentrations with the wild-type strain. The count data obtained on days 1 and 2 for catheters colonized with UAMS-1 were exposed to daptomycin at a 10× concentration (Dap10) were compared with those for catheters exposed to linezolid or vancomycin at a 20× concentration (Lin20 and Van20, respectively). Each box defines the interquartile range between the 25th and 75th percentiles. Bars extending upward from each box indicate the boundary defined by values 1.5 times higher than the 75th percentile, while those extending downward represent the boundary defined by values 1.5 times lower than the 25th percentile. Open circles represent individual data points outside these two extremes. The numbers above each bar are P values obtained for comparisons made between daptomycin and each of the other antibiotics.