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. 2007 Mar 12;51(5):1813–1817. doi: 10.1128/AAC.01037-06

TABLE 1.

Statistical summary (estimate ± standard error of the mean) for LR and interaction estimates obtained in RDR experiments with 10-μg/ml ciprofloxacin

Effect and drug(s) Value for ciprofloxacin (3 expts)
LR
    Tobramycin and ciprofloxacin 1.60 ± 0.36
    Ciprofloxacin −0.29 ± 0.44
    Tobramycin 0.40 ± 0.25
Interaction of tobramycin and ciprofloxacin (Pa) 1.48 ± 0.34 (<0.01)
a

One-tailed t test of the null hypothesis that the true interaction is ≤0.