Sites of thrombosis according to leukocytosis at diagnosis in 657 patients with ET8
| . | 7.1-10 × 109/L white blood cells* . | More than 10 × 109/L white blood cells* . | ||
|---|---|---|---|---|
| HR (95% CI) . | P . | HR (95% CI) . | P . | |
| Major thrombosis | 2.21 (1.05-4.65) | .036 | 3.27 (1.54-6.95) | .002 |
| Arterial thrombosis | 2.07 (0.83-5.20) | .121 | 3.12 (1.20-8.08) | .019 |
| Myocardial infarction (IMA) | 5.82 (0.64-53.2) | .118 | 8.08 (1.00-65.5) | .050 |
| Stroke/TIA | 0.88 (0.29-2.67) | .824 | 1.32 (0.42-4.11) | .631 |
| Venous thrombosis | 1.40 (0.49-4.04) | .534 | 2.51 (0.86-7.29) | .092 |
| . | 7.1-10 × 109/L white blood cells* . | More than 10 × 109/L white blood cells* . | ||
|---|---|---|---|---|
| HR (95% CI) . | P . | HR (95% CI) . | P . | |
| Major thrombosis | 2.21 (1.05-4.65) | .036 | 3.27 (1.54-6.95) | .002 |
| Arterial thrombosis | 2.07 (0.83-5.20) | .121 | 3.12 (1.20-8.08) | .019 |
| Myocardial infarction (IMA) | 5.82 (0.64-53.2) | .118 | 8.08 (1.00-65.5) | .050 |
| Stroke/TIA | 0.88 (0.29-2.67) | .824 | 1.32 (0.42-4.11) | .631 |
| Venous thrombosis | 1.40 (0.49-4.04) | .534 | 2.51 (0.86-7.29) | .092 |
Multivariable models adjusted for information collected at diagnosis, including center, sex, standard risk factors, hemoglobin, hematocrit, and platelet count.
Reference category: WBC count 7 × 109/L or lower.