After stopping LMWH treatment , only the absence of varicose veins ( OR : 2.5 ; 95 % CI 1.3-5 .0 ; p = 0.004 ) and previous VTE and/or SVT and/or family history of VTE ( OR : 1.9 ; 95 % CI :1.0 -3.7 ; p = 0.048 ) were significantly associated with outcomes .