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Comparison of preadmission variables among treatment groups.
| Variable, mean (SD) | Group I | Group II |
|---|---|---|
| Number of patients | 30 | 30 |
| Average age (yr) | 41.4 (10.4) | 38.2 (13.6) |
| Duration of symptoms (d) | 14.5 (8.9) | 14.3 (7.9) |
| Initial WBC (×103) | 14.9 (9.4) | 15.4 (9.2) |
| Total lymphocytes (×103) | 11.4 (6.7) | 10.9 (6.9) |
| Abscess size (cm) | 6.8 (2.6) | 6.7 (2.5) |
| Catheter size (Fr) | 10 | 10 |
