Neurologic disease with paresis and malignant neoplasms are associated with an increased risk of VTE recurrence, whereas transient risk factors are associated with a lower risk.
Venous thromboembolism recurs frequently, especially within the first 6 to 12 months, and continues to recur for at least 10 years after the initial VTE. Patients with VTE with neurologic disease and paresis or with malignant neoplasm are at increased risk for recurrence, while VTE patients with transient or reversible risk factors are at less risk.
Heit et al. (2000) studied this question.