Table 3:

Multivariate analysis

	P univariate	P multivariate
Conv-T	<0.001	<0.001
Type of operation	0.021	NS
Age	0.008	NS
Valve size	NS
Concomitant procedures	NS
Atrial fibrillation/carotid stenosis	NS

Conv-T, patients with conventional anticoagulation treatment by family physicians.