Characteristics of control subjects and patients with essential thrombocythemia and polycythemia vera
| . | Controls . | ET . | PV . |
|---|---|---|---|
| n (M/F) | 71 (35/36) | 37 (13/24) | 34 (22/12) |
| Age, median (range) | 60 (20-77) | 53 (21-75) | 63 (29-87) |
| . | Controls . | ET . | PV . |
|---|---|---|---|
| n (M/F) | 71 (35/36) | 37 (13/24) | 34 (22/12) |
| Age, median (range) | 60 (20-77) | 53 (21-75) | 63 (29-87) |
| Hematologic parameters . | |||
|---|---|---|---|
| . | Controls . | ET . | PV . |
| RBCs (× 1012/L) | 4.63 (4.02-5.27) | 4.28 (2.57-5.8) | 5.88 (3.3-7.21)* |
| WBCs (× 109/L) | 5.1 (3.8-9.8) | 7.24 (4.2-15.6)* | 10.2 (4.6-34)* |
| PMNs (× 109/L) | 3.0 (1.9-6.3) | 4.54 (1.76-11.4)* | 8.2 (3.4-31)* |
| Platelets (× 109/L) | 260.0 (184-391) | 697.0 (360-1,600)* | 328.0 (125-744)* |
| Hemoglobin (g/L) | 13.8 (12.8-16) | 13.5 (9.4-16.1) | 16.2 (13.3-20)* |
| Hematocrit (%) | 40.7 (29.7-48.1) | 39.8 (27.8-48) | 47.0 (37.4-61)* |
| Hematologic parameters . | |||
|---|---|---|---|
| . | Controls . | ET . | PV . |
| RBCs (× 1012/L) | 4.63 (4.02-5.27) | 4.28 (2.57-5.8) | 5.88 (3.3-7.21)* |
| WBCs (× 109/L) | 5.1 (3.8-9.8) | 7.24 (4.2-15.6)* | 10.2 (4.6-34)* |
| PMNs (× 109/L) | 3.0 (1.9-6.3) | 4.54 (1.76-11.4)* | 8.2 (3.4-31)* |
| Platelets (× 109/L) | 260.0 (184-391) | 697.0 (360-1,600)* | 328.0 (125-744)* |
| Hemoglobin (g/L) | 13.8 (12.8-16) | 13.5 (9.4-16.1) | 16.2 (13.3-20)* |
| Hematocrit (%) | 40.7 (29.7-48.1) | 39.8 (27.8-48) | 47.0 (37.4-61)* |
All values are expressed as median (range).
ET indicates essential thrombocythemia; PV, polycythemia vera; RBC, red blood cell; WBC, white blood cell; PMN, polymorphonuclear leukocyte.
P < .01 vs controls (Mann-Whitney test).