Table 4. Family analysis of thrombotic risk in c.565C>T carriers and non-carriers.

	Carriers	Non-carriers
Number	20	29
Male/Female	12/8	16/13
Age at first thrombosis, median (range)	51.5 (49–61)	51
Years of follow up	890	1264
Number of VT events	7	1
Events per 1000 person-years (95%CI)	7.9 (7.6–8.1)	0.8
Relative risk for thrombosis (95% CI)*	8.8 (1.1–71.6)	1

^*Data were analyzed using a Cox regression model adjusted for age and gender.