TABLE 1.
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) |
Superficial S. aureus infections or S. aureus bacteremia (only IDUs).
Prognosis or severity of underlying diseases classified according to the criteria of McCabe and Jackson.
Classified as definite or possible by using the modified Duke criteria.