F8 and Venous thrombosis: Regarding PE, Erkekol et al. supported the existence of a quantitative correlation between factor VIII levels and thrombosis, since high plasma levels of FVIII (>168 U/dL) were found in 53.3% (OR 11.04; 95% CI 3.65–33.35) of isolated PE patients and 55.0% (OR 11.81; CI 3.49–39.92) of patients with a combined form of PE and DVT compared with 9.4% in control patients.