TABLE 1.

Percentage of MIC and MPC values at CLSI breakpoints for all strains tested^a

Drug and parameter	% of strains in each breakpoint category
	Susceptible	Intermediate	Resistant
Levofloxacin
MIC	66	3	31
MPC	18	42	40
Moxifloxacin
MIC	71	6	23
MPC	57	9	34
Gemifloxacin
MIC	67	4	29
MPC	14	28	58

^aThe CLSI breakpoints (6) are as follows for the three drugs: for levofloxaxin, ≤2 μg/ml for susceptible, 4 μg/ml for intermediate, and ≥8 μg/ml for resistant; for moxifloxacin, ≤1 μg/ml for susceptible, 2 μg/ml for intermediate, and ≥4 μg/ml for resistant; for gemifloxacin, ≤0.125 μg/ml for susceptible, 0.25 μg/ml for intermediate, and ≥0.5 μg/ml for resistant.