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Study and control groups.
| Study group | Control group | Differences between groups, P value | |
| hypercoagulability | + | - | - |
| number of patients | 28 | 28 | - |
| male/female | 20/8 | 21/7 | 0.33 |
| median age | 62 | 60.1 | 0.52 |
| Prognostic factors | |||
| Good prognosis | 15 pts (53.6%) | 15 pts (53.6%) | - |
| Poor prognosis | 13 pts (46.4%) | 13 pts (46.4%) | - |
