TABLE 2.
Comparison of levofloxacin MIC distributions for S. pneumoniae isolated from patients in different age groups in the United States from 2000 to 2002
| Patient age (yr) | No. of isolates tested | No. of isolates for which the levofloxacin MIC (μg/ml) was as follows (cumulative % of isolates inhibited):
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.06 | 0.12 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | >8 | ||
| <2 | 1,080 | 1 (0.1) | 0 (0.1) | 7 (0.7) | 621 (58.2) | 448 (99.7) | 3 (100) | |||
| 2-4 | 797 | 2 (0.3) | 1 (0.4) | 3 (0.8) | 448 (57.0) | 342 (99.9) | 0 (99.9) | 0 (99.9) | 1 (100) | |
| 5-10 | 611 | 2 (0.3) | 0 (0.3) | 287 (47.3) | 320 (99.7) | 1 (99.8) | 0 (99.8) | 1 (100) | ||
| 11-17 | 346 | 1 (0.3) | 163 (47.4) | 181 (99.7) | 1 (100) | |||||
| 18-64 | 6,339 | 10 (0.2) | 7 (0.3) | 56 (1.2) | 3,056 (49.4) | 3,126 (98.7) | 21 (99.0) | 6 (99.1) | 35 (99.7) | 22 (100) |
| >64 | 4,627 | 7 (0.2) | 4 (0.2) | 25 (0.8) | 2,210 (48.5) | 2,298 (98.2) | 19 (98.6) | 6 (98.7) | 28 (99.4) | 30 (100) |