Two-year OS was higher in RCHT + EPO-treated versus RCHT-treated ( @ % -LSB- @ % CI : @-@ @ % -RSB- versus @ % -LSB- @ % CI : @-@ @ % -RSB- -LSB- p = @ -RSB- ) , and requirement for RBC transfusion was lower ( @/@ -LSB- @ % -RSB- versus @/@ -LSB- @ % -RSB- ) .