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CLINICAL CHARACTERISTICS OF PATIENTS ENROLLED IN THE STUDY
| N | 155 |
| Age, yr (mean ± SD) | 52 ± 16 |
| Male, % | 58.0 |
| Apache II (mean ± SD) | 21.7 ± 7.3 |
| Shock, % | 44.1 |
| Mechanical ventilation, % | 77.5 |
| 60-d mortality, % | 31.0 |
| Source of infection, % | |
| Lung | 49.7 |
| Urinary tract | 9.7 |
| Abdomen | 9.7 |
| Blood | 5.2 |
| Other | 25.7 |
