In stratified analyses , processed meat intake was directly associated with breast cancer risk in the placebo group only [ HRQ4vsQ1 = 2.46 ( 1.28-4 .72 ) , Ptrend = 0.001 ] , but not in the supplemented group [ HRQ4vsQ1 = 0.86 ( 0.45-1 .63 ) , Ptrend = 0.7 ] .