Risk of venous thromboembolism and benefits of prophylaxis use in hospitalized medically ill US patients up to 180 days post-hospital discharge

Table 5 COX model for time to VTE, major bleeding, and minor bleeding events among medically ill patients

	Time to VTE		Time to major bleeding		Time to minor bleeding
	Pr > Chi squared	Hazard ratio	Pr > Chi squared	Hazard ratio	Pr > Chi squared	Hazard ratio
Age, yr	0.9044	1.00	0.8416	1.00	0.1257	1.00
Male	0.4594	0.92	0.0162	1.42	0.1120	1.09
Northeast	0.4015	2.16	0.3896	0.55	0.4711	0.80
North Central	0.3526	1.75	0.0493	0.30	0.0328	0.62
South	0.3603	1.71	0.0583	0.32	0.0647	0.67
Elixhauser Comorbidity Index ≥2	0.3879	1.15	0.5041	0.86	0.8457	1.02
Prior VTE	0.0978	1.30	0.4936	1.28	0.5269	1.09
Chronic heart failure	0.3315	0.83	0.2288	0.74	0.0068	0.79
Thromboembolic stroke	0.0017	0.42	0.3261	1,25	<0.0001	0.64
Severe lung disease	0.8550	1.03	0.5226	0.87	0.0020	0.80
Acute infection	0.7596	1.05	0.2200	0.69	0.0910	0.87
Any anticoagulant	<0.0001	0.37	0.8602	1,03	0.5453	0.97

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