Table 6.

Multivariate Analysis of Demographic and Baseline Characteristics as Potential Risk Factors for Venous Valvular Incompetence

Characteristic		Venous Valvular Incompetence in Left Leg Only	Venous Valvular Incompetence in Right Leg Only	Venous Valvular Incompetence in Either Leg
		-------------------------------------- OR (95% CI) -----------------------------------
DVT Same Leg		4.8 (2.8, 8.4)‡	3.1 (1.7, 5.7)‡	3.9 (2.6, 6.0)‡
DVT Opposite Leg		1.7 (0.9, 3.3)	2.2 (1.2, 4.0)†	2.0 (1.3, 3.1)†
Age at Visit	Δ per 10 years	1.1 (0.9, 1.3)	0.9 (0.7, 1.1)	1.0 (0.8, 1.1)
Male		1.4 (0.8, 2.3)	1.5 (0.9, 2.6)	1.4 (0.9, 2.2)
Time Since Event	Δ per 5 years
	10 vs 5	1.0 (0.6, 1.5)	1.0 (0.6, 1.5)	1.0 (0.7, 1.4)
	15 vs 10	1.1 (0.8, 1.4)	1.0 (0.8, 1.3)	1.1 (0.9, 1.3)
	20 vs 15	1.2 (0.95, 1.5)	1.1 (0.9, 1.4)	1.2 (0.96, 1.4)
	25 vs 20	1.4 (0.9, 2.1)	1.2 (0.8, 1.9)	1.2 (0.9, 1.8)
Varicose Veins		2.3 (1.2, 4.3)*	2.1 (1.1, 4.0)*	2.2 (1.3, 3.6)†
Prior Venous Stasis Syndrome		2.4 (0.8, 7.0)	4.8 (1.6, 14.3)†	3.4 (1.5, 8.0)†

^*p-value<0.05

^†p-value<0.01

^‡p-value<0.001