a history of breast biopsy increased the likelihood of having a high-risk pattern ( or = 1.57 ) , whereas a similar weak overall association with prior cancer in the contralateral breast ( or = 1.40 ) and with familiar occurrence of breast cancer ( or = 1.20 ) was eliminated when other confounding factors were considered in a multivariate analysis .
C0006141
breast
C0006142
of breast cancer