Clinical characteristics of patients at diagnosis
| Characteristics . | Median value (range) . |
|---|---|
| Age (y) | 49.7 (9.1-70.1) |
| Sex (M/F) | 45/29 |
| Enlarged spleen (cm) | 5 (1-18)* |
| White blood cell counts (×109/L) | 72.3 (14.4-492) |
| Platelet counts (×109/L) | 320 (110-2970) |
| Peripheral blood blast cells (%) | 1 (0-7) |
| Peripheral basophil (%) | 3 (0-13) |
| Hemoglobin level (g/L) | 126 (67-158) |
| Interval diagnosis–IFN-α (mo) | 1.18 (0-6.30) |
| Characteristics . | Median value (range) . |
|---|---|
| Age (y) | 49.7 (9.1-70.1) |
| Sex (M/F) | 45/29 |
| Enlarged spleen (cm) | 5 (1-18)* |
| White blood cell counts (×109/L) | 72.3 (14.4-492) |
| Platelet counts (×109/L) | 320 (110-2970) |
| Peripheral blood blast cells (%) | 1 (0-7) |
| Peripheral basophil (%) | 3 (0-13) |
| Hemoglobin level (g/L) | 126 (67-158) |
| Interval diagnosis–IFN-α (mo) | 1.18 (0-6.30) |
| Sokal classification* . | No. patients (%) . |
|---|---|
| Low risk | 36 (49) |
| Intermediate risk | 29 (40) |
| High risk | 8 (11) |
| Sokal classification* . | No. patients (%) . |
|---|---|
| Low risk | 36 (49) |
| Intermediate risk | 29 (40) |
| High risk | 8 (11) |
Only 31 patients had enlarged spleens, and one patient had a splenectomy before diagnosis.