Breast Cancer Risk Differs Among Ethnic Groups
Study Shows Differences in Risk Factors for White Women and Hispanic Women
WebMD News Archive
Estimating Breast Cancer Risk continued...
Among other conclusions:
- White women had a higher incidence of breast cancer compared with Hispanic
women for every age group analyzed. That difference seemed to increase with
- Among premenopausal women in the group, a higher proportion of Hispanic
women than white women reported characteristics associated with a lower risk of
breast cancer, specifically, younger age at first birth, having more children,
shorter height, higher body mass index, no oral contraceptive use, and less
- Characteristics associated with increased risk that were more likely to be
reported among Hispanic women included younger age at first menstruation, not
breastfeeding, and low physical activity.
- Older age at first birth was the only risk factor that was associated
significantly with increased risk among both white and Hispanic women.
The researchers conclude that their findings "provide support for notable
ethnic differences in both the prevalence of risk factors and their
associations with breast cancer in comparisons between [non-Hispanic white]
women and Hispanic women."
The researchers write that their findings "demonstrate that there are ethnic
differences in both the prevalence of established breast cancer risk factors
and their associations with breast cancer."
The differences may help explain the disparity in breast cancer incidence
rates, and the study suggests more research is needed to pinpoint breast cancer
risk factors among ethnic and racial populations.
The study is published in Cancer.