Table 5.
Risk factors for PVT according to age and gender
| Risk factors* | All patients | Age range (years) | Gender | ||||
|---|---|---|---|---|---|---|---|
| <20 | 20-39 | 40-60 | >60 | Male | Female | ||
| N (%) 194 (100) |
N (%) 13 (6.7) |
N (%) 36 (18.6) |
N (%) 81 (41.8) |
N (%) 64 (33) |
N (%) 126 (65) |
N (%) 68 (35.1) |
|
| Cirrhosis | 98 (50.5) | 1 (7.7) | 6 (16.7) | 52 (64.2) | 39 (60.9) | 78 (61.9) | 20 (29.4) |
| Malignancy | 126 (65) | 1 (7.7) | 14 (38.9) | 56 (69.1) | 55 (86) | 94 (74.6) | 32 (47.1) |
| Abdominal intervention | 15 (7.7) | 4 (30.8) | 3 (8.3) | 6 (7.4) | 2 (3.1) | 6 (4.8) | 9 (13.2) |
| Abdominal inflammation or infection | 18 (9.3) | 1 (7.7) | 5 (13.9) | 7 (8.6) | 5 (7.8) | 7 (5.6) | 8 (11.8) |
| BM disorders, protein S deficiency, and APS | 11 (5.7) | 1 (7.7) | 3 (8.3) | 5 (6.2) | 2 (3.1) | 5 (4) | 6 (8.8) |
| Oral contraceptive pills | 4 (2) | 0 (0) | 4 (11.1) | 0 (0) | 0 (0) | 0 (0) | 4 (5.9) |
| Others | 2 (1) | 0 (0) | 2 (5.6) | 0 (0) | 0 (0) | 1 (0.8) | 1 (1.5) |
| Idiopathic | 18 (9.3) | 6 (46.2) | 8 (22.2) | 3 (3.7) | 1 (1.6) | 7 (5.6) | 11 (16.2) |
N, number of cases; BM, bone marrow; APS, anti-phospholipid syndrome
*Some patients had more than one risk factor.