Analysis of variance for repeated measures showed a significant effect of study treatment in reducing prothrombin fragment 1-2 ( p = 0.009 ; interaction with time sample , p = 0.006 ) and plasmin-antiplasmin complex ( p < 0.001 ; interaction with time sample , p < 0.001 ) values but not interleukin 6 ( p = 0.877 ; interaction with time sample , p = 0.521 ) and platelet factor 4 ( p = 0.913 ; interaction with time sample , p = 0.543 ) .