Changes

Many factors affect the incidence of breast cancer in any given population of women including:

Many factors affect the incidence of breast cancer in any given population of women including:

*'''Sex''': 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.

*'''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.

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

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