Table 4.
History of Thrombotic Events in 2485 Patients With Evaluable Data
| Thrombotic Event | N (%) |
|---|---|
| Any Events Before Enrollmenta | 468 (18.8) |
| Before diagnosisb | 296 (11.9) |
| Venous | 166 (6.7) |
| Arterial | 142 (5.7) |
| Between diagnosis and enrollmentb | 207 (8.3) |
| Venous | 130 (5.2) |
| Arterial | 87 (3.5) |
| More than one thrombotic event | 115 (4.6) |
| Venous Events Before Enrollment | 279 (11.2) |
| Deep-vein thrombosis | 151 (6.1) |
| Pulmonary embolism | 64 (2.6) |
| Superficial venous thrombosis | 30 (1.2) |
| Portal vein thrombosis | 20 (0.8) |
| Cerebral vein/sinus thrombosis | 17 (0.7) |
| Splenic vein thrombosis | 9 (0.4) |
| Retinal vein thrombosis | 7 (0.3) |
| Visceral/splanchnic vein thrombosis | 1 (<0.1) |
| Other | 42 (1.7) |
| Arterial Events Before Enrollment | 218 (8.8) |
| Cerebrovascular arterial thrombosis | 126 (5.1) |
| Acute myocardial infarction | 44 (1.8) |
| Peripheral arterial thrombosis | 14 (0.6) |
| Splenic infarction | 6 (0.2) |
| Retinal artery thrombosis | 4 (0.2) |
| Visceral arterial thrombosis | 1 (<0.1) |
| Other | 38 (1.5) |
Patients without known PV diagnosis date were excluded from evaluable patient population.
a
Thrombotic events without event dates were excluded.
b
Patient groups reporting events “before diagnosis” and “between diagnosis and enrollment” are not mutually exclusive.