N of males/females Mean age; min-max (years) P Patients 1 / 2 46.33 ; 44-50 - Siblings 1 / 2 49.67 ; 41-56 0.7 Neighbors 1 / 2 46.00 ; 40-50 0.83

Table 1: Demographic data from patients with Deep Vein Thrombosis (DVT), siblings and neighbors.