Distribution of all 1220 patients and their thrombotic rates according to standard risk factors and the new IPSET-thrombosis model
| Standard risk factors . | IPSET-thrombosis . | |||
|---|---|---|---|---|
| Low . | Intermediate . | High . | Total . | |
| Low | n = 281 | n = 277 | n = 32 | N = 590 |
| 48% | 47% | 5% | 100% | |
| 0.59%pts/y | 1.55%pts/y | 1.77%pts/y | 0.95%pts/y | |
| High | n = 193 | n = 194 | n = 243 | N = 630 |
| 31% | 31% | 39% | 100% | |
| 1.27%pts/y | 2.67%pts/y | 3.71%pts/y | 2.86%pts/y | |
| Total | n = 474 | n = 471 | n = 275 | N = 1220 |
| 39% | 39% | 23% | 100% | |
| 1.03%pts/y | 2.35%pts/y | 3.56%pts/y | 1.77%pts/y | |
| Standard risk factors . | IPSET-thrombosis . | |||
|---|---|---|---|---|
| Low . | Intermediate . | High . | Total . | |
| Low | n = 281 | n = 277 | n = 32 | N = 590 |
| 48% | 47% | 5% | 100% | |
| 0.59%pts/y | 1.55%pts/y | 1.77%pts/y | 0.95%pts/y | |
| High | n = 193 | n = 194 | n = 243 | N = 630 |
| 31% | 31% | 39% | 100% | |
| 1.27%pts/y | 2.67%pts/y | 3.71%pts/y | 2.86%pts/y | |
| Total | n = 474 | n = 471 | n = 275 | N = 1220 |
| 39% | 39% | 23% | 100% | |
| 1.03%pts/y | 2.35%pts/y | 3.56%pts/y | 1.77%pts/y | |
IPSET indicates International Prognostic Score for Essential Thrombocythemia; and %pts/y, percentage of patients per year.