Table 1.

Socio-demographic and clinical characteristics of the "pooled" population at day 1 (n = 652)

Medical condition	Number of patients	Countrya (n)			Age (years ± SD)	Gender (%)		INRb, c (n)			Patients with prior medicationd (n)
		US	NL	FR		Male	Female	<2	[2;3]	>3
Atrial fibrillation	426	152	251	23	68 ± 9.5	70	30	152	207	64	72
Deep venous thrombosis	87	58	0	29	54.6 ± 16.8	48	52	77	0	0	0
Pulmonary embolism	139	24	58	57	59.9 ± 16.4	52	48	11	1	0	0

^a US, The United States; NL, The Netherlands; FR, France

^b INR, International Normalized Ratio; MD

^c MD, missing data = 39

^d Patients who had already received antithrombotic agents prior to participation in the study