For the dose-density comparison , disease-free survival at @ years was @ % ( @ % CI @-@ ) in patients treated every @ weeks and @ % ( @-@ ) in patients treated every @ weeks ( HR @ , @ % CI @-@ ; p = @ ) ; overall survival rates at @ years were @ % ( @-@ ) and @ % ( @-@ ; HR @ , @-@ ; p = @ ) and for the chemotherapy-type comparison , disease-free survival at @ years was @ % ( @-@ ) in the FEC-P groups and @ % ( @-@ ) in the EC-P groups ( HR @ , @-@ ; p = @ ) ; overall survival rates at @ years were @ % ( @-@ ) and @ % ( @-@ ; @ , @-@ ; p = @ ) .