Incidence of risk period–related venous thromboembolism in 32 heterozygous family members with the factor V Leiden mutation and in 19 subjects belonging to the control group
| Type of risk period . | Factor V Leiden + . | Factor Leiden V − . | ||
|---|---|---|---|---|
| No. . | VTE . | No. . | VTE . | |
| Trauma or surgery | 19 (6) | 4 (1) | 13 | 1 |
| Pregnancy/postpartum | 12 (5*) | 2 | 3 | 0 |
| Oral contraceptives | 3 | 0 | 5 | 0 |
| Total | 34 (11) | 6 (1) | 21 | 1 |
| Type of risk period . | Factor V Leiden + . | Factor Leiden V − . | ||
|---|---|---|---|---|
| No. . | VTE . | No. . | VTE . | |
| Trauma or surgery | 19 (6) | 4 (1) | 13 | 1 |
| Pregnancy/postpartum | 12 (5*) | 2 | 3 | 0 |
| Oral contraceptives | 3 | 0 | 5 | 0 |
| Total | 34 (11) | 6 (1) | 21 | 1 |
Numbers in parentheses represent the patients who received prophylaxis or VTE events that occurred under prophylaxis.
Prophylaxis only in the postpartum period.