Table 1 Patient characteristics
Parameter/characteristic | Cases (n = 55) | Controls (n = 55) |
|---|---|---|
At admission | ||
Age (years; mean ± SD] | 59.9 ± 18.2 | 60.3 ± 17.5 |
Male (n [%]) | 31 (56) | 33 (60) |
SAPS II (mean ± SD) | 37.2 ± 15.3 | 37.4 ± 14.7 |
Transfer from other wards (n [%]) | 48 (87) | 49 (89) |
Diabetes mellitus (n [%]) | 12 (21) | 13 (23) |
Prior antibiotic treatment* (n [%]) | 40 (72) | 15 (27) |
Admission category (n [%]) | ||
Medical | 39 (70) | 39 (70) |
Surgical | 16 (29) | 16 (29) |
Primary diagnosis for admission (n [%]) | ||
Community-acquired pneumonia | 12 (21) | 12 (21) |
Cellulitis | 12 (21) | 12 (21) |
Septic shock | 10 (18) | 10 (18) |
Congestive heart failure | 7 (12) | 7 (12) |
Peritonitis | 4 (7) | 4 (7) |
Acute respiratory distress syndrome | 4 (7) | 4 (7) |
Other | 6 (10) | 6 (10) |
Organ failure (n [%]) | ||
Cardiac | 11 (20) | 17 (30) |
Respiratory | 38 (69) | 41 (74) |
Renal | 14 (25) | 10 (18) |
Neurologic | 12 (21) | 19 (34) |
Digestive | 3 (5) | 5 (9) |
During hospitalization | ||
Tracheostomy† (n [%]) | 12 (21) | 5 (9) |
Antibiotic treatment‡ | ||
n (%) | 55 (100) | 43 (78) |
Duration (days; mean ± SD) | 13.3 ± 11.5 | 5.8 ± 9.2 |
Antibiotic days/1000 ICU-days | 485 | 330 |