Table 3.

Prevalence of thrombophilic defects in the general population and patients with VTE

	Prevalence in the general population (%)	Prevalence in VTE cohort (%)	Annual VTE Risk (%/y)
Antithrombin deficiency	0.02	0.5	1.1
Protein C deficiency	0.15	6	0.7
Protein S deficiency	0.1	2	0.3
FV Leiden heterozygous	5	16	0.5
FV Leiden homozygous	0.004	0.01	1.3
FII G20210A heterozygous	2	7	0.4
FII G20210A homozygous	0.1	2	1.1
FV Leiden/FII heterozygous	0.1	3	0.5