Long-term incidence, risk factors and complications for venous thromboembolism in patients with systemic lupus erythematosus.

VTE affected 12.8% of patients with SLE at six times the VTE rate in controls with aPL as the strongest, but not the only risk factor in SLE. The risk of PH was increased in both groups following PE, but VTE did not associate with an increased risk of arterial events.