Table 2 Type of thrombotic events occurring before/at diagnosis or during follow-up in training cohort.

From: JAK2V617F variant allele frequency >50% identifies patients with polycythemia vera at high risk for venous thrombosis

University of Florence cohort (n = 576)

 

Before/at diagnosis

During follow-up

Arterial thrombosis (n, %)

n = 76

n = 49

Acute myocardial infarction

26 (34.2)

13 (26.5)

Unstable angina

4 (5.3)

5 (10.2)

Stroke

22 (28.9)

12 (24.5)

Transient ischemic attack

17 (22.4)

15 (30.6)

Peripheral arterial thrombosis

5 (6.6)

4 (8.2)

Abdominal thrombosis

1 (1.3)

Retinal thrombosis

1 (1.3)

Venous thrombosis (n, %)

n = 52

n = 39

Deep vein thrombosis

28 (53.8)

19 (48.7)

Pulmonary embolism

8 (15.4)

7 (17.9)

Pulmonary embolism + deep vein thrombosis

1 (1.9)

2 (5.1)

Cerebral vein thrombosis

3 (5.8)

1 (2.6)

Superficial vein thrombosis

9 (17.3)

8 (20.5)

Retinal thrombosis

3 (5.8)

2 (5.1)