Sample and patient characteristics
Characteristic . | Median . | Range . |
|---|---|---|
| Shipment time, d | 1 | 0-3 |
| Storage time at -80°C, mo | 13 | 0-67 |
| Patient age, y | 57 | 16-90 |
| AML | 61 | 18-90 |
| ALL | 46 | 16-86 |
| CML | 49 | 21-82 |
| CLL | 63 | 36-84 |
| Nonleukemia | 45 | 18-83 |
| WBC count, 109/L | 28.8 | 0.4-514 |
| Bone marrow blasts (acute leukemias only), %* | 85 | 10-100 |
Characteristic . | Median . | Range . |
|---|---|---|
| Shipment time, d | 1 | 0-3 |
| Storage time at -80°C, mo | 13 | 0-67 |
| Patient age, y | 57 | 16-90 |
| AML | 61 | 18-90 |
| ALL | 46 | 16-86 |
| CML | 49 | 21-82 |
| CLL | 63 | 36-84 |
| Nonleukemia | 45 | 18-83 |
| WBC count, 109/L | 28.8 | 0.4-514 |
| Bone marrow blasts (acute leukemias only), %* | 85 | 10-100 |
N = 937 patients and controls; 53% male, 47% female.
Threshold for the definition of AML according to WHO classification3 is a bone marrow blast count of at least 20%, which may be even lower if recurrent balanced translocations are present.