TABLE 1.
Characteristics of IDUs and nonaddicts with methicillin-sensitive Staphylococcus aureus bacteremia (n = 87)
| Characteristic | No. (%) of patients |
|
|---|---|---|
| Injection drug users (n = 43) | Nonaddicts (n = 44) | |
| Age (yr, mean ± SD) | 29 ± 8 | 50 ± 19 |
| Male sex | 32 (74.4) | 28 (63.6) |
| Previous S. aureus infectiona | 7 (16) | 8 (18.2) |
| Underlying disease | ||
| Liver disease | 36 (83.7) | 5 (11.4) |
| HIV infection | 6 (13.9) | 0 (0.0) |
| Diabetes | 3 (7.0) | 12 (27.3) |
| Coronary artery diseases | 0 (0.0) | 8 (18.2) |
| Chronic renal failure | 0 (0.0) | 6 (13.6) |
| Malignancy | 0 (0.0) | 4 (9.1) |
| McCabe's classificationb | ||
| Healthy or nonfatal disease | 43 (100) | 33 (75.0) |
| Ultimately or rapidly fatal disease | 0 (0) | 11 (25.0) |
| Endocarditisc | 19 (44.2) | 20 (45.5) |
| Outcome: death within 3 mo | 2 (4.7) | 4 (9.1) |
a
Superficial S. aureus infections or S. aureus bacteremia (only IDUs).
b
Prognosis or severity of underlying diseases classified according to the criteria of McCabe and Jackson.
c
Classified as definite or possible by using the modified Duke criteria.