Changes

*'''Gender''': Breast cancer occurs 100 times more frequently in women than in men.

*'''Gender''': Breast cancer occurs 100 times more frequently in women than in men.

*'''Age''': this is a complex relationship, with the steepest rise in diagnosis occurring between the ages of 40 and 60, however pre- and post-menopausal breast cancers tend to behave differently.<ref> http://www.breastcancer.org/cmn_who_indrisk.html </ref>

*'''Age''': this is a complex relationship, with the steepest rise in diagnosis occurring between the ages of 40 and 60, however pre- and post-menopausal breast cancers tend to behave differently. Increasing age increases the risk that at some point in her life a woman will contract breast cancer, rising from 1 in 231 (0.5% risk) aged under 40 to 1 in 7 at age 90. <ref> http://www.breastcancer.org/cmn_who_indrisk.html </ref>.<ref> http://www.breastcancer.org/cmn_who_indrisk.html </ref>

*'''Diet''' <ref> http://unisci.com/stories/20021/0104023.htm </ref>  

*'''Diet''' <ref> http://unisci.com/stories/20021/0104023.htm </ref>  

*'''Race/ethnicity''': not a strong risk factor in the development of breast cancer, but affects time of diagnosis, and access to care.<ref> http://www.womenshealthnetwork.org/advocacy/wocbreastca/natam.htm </ref>   

*'''Race/ethnicity''': not a strong risk factor in the development of breast cancer, but affects time of diagnosis, and access to care.<ref> http://www.womenshealthnetwork.org/advocacy/wocbreastca/natam.htm </ref>