Risk factor associations for rare breast cancer variants are often imprecise, obscuring differences between tumor types. To clarify differences, we examined risk factors for 5 histological types of breast cancer in the National Institutes of Health-AARP Diet and Health Study. Risk factor information was self-reported. We followed 192,076 postmenopausal women aged 50-71 years from 1995-1996 through 2006. During that time period, 5,334 ductal, 836 lobular, 639 mixed ductal-lobular, 216 mucinous, and 132 tubular breast cancers were diagnosed. Hazard ratios and 95

作者：Sarah J, Nyante；Cher M, Dallal；Gretchen L, Gierach；Yikyung, Park；Albert R, Hollenbeck；Louise A, Brinton

来源：American journal of epidemiology 2013 年 178卷 3期