Volume 11, Number 8—August 2005
Research
Pseudomonas aeruginosa, Staphylococcus aureus, and Fluoroquinolone Use
Conan MacDougall*, Spencer E. Harpe*, J. Patrick Powell*, Christopher K. Johnson†, Michael B. Edmond*, and Ron E. Polk*
Table 1
Demographic characteristics of study hospitals, year 2002*
| Characteristic | Mean ± SD | Median (range) |
|---|---|---|
| No. admissions | 19,122 ± 12,208 | 14,720 (5,206–40,676) |
| No. patient-days | 96,488 ± 64,719 | 76,408 (19,244–219,634) |
| Case mix index | 1.51 ± 0.245 | 1.52 (1.13–2.01) |
| Length of hospital stay, d | 5 ± 0.67 | 5 (3.6–6.6) |
| No. staffed beds | 358 ± 203 | 310 (105–778) |
| No. intensive care unit beds | 22 ± 16 | 18 (3–80) |
| No. surgical procedures/1,000 admissions | 346 ± 184 | 281 (163–779) |
*SD, standard deviation.
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