Breast Cancer Trends Among Diverse Women in the US
Author Information
Author(s): Amelia K Hausauer, Theresa HM Keegan, Ellen T Chang, Christina A Clarke
Primary Institution: Northern California Cancer Center
Hypothesis
Are there differences in breast cancer incidence trends among Asian/Pacific Islander, Hispanic, and African-American women compared to non-Hispanic White women?
Conclusion
Breast cancer incidence reductions vary significantly by race/ethnicity, with the most pronounced declines in non-Hispanic White women.
Supporting Evidence
- Breast cancer incidence rates declined among Asian/Pacific Islander and Hispanic women but remained stable for African-American women.
- Reductions in hormone receptor-positive tumors were most pronounced among non-Hispanic White women.
- Rates of in situ cancer remained stable across all racial/ethnic groups studied.
Takeaway
This study looked at how breast cancer rates changed for different groups of women in the US, finding that some groups saw bigger drops in cases than others.
Methodology
Data was obtained from 13 SEER cancer registries to calculate age-adjusted incidence rates and trends from 1992 to 2004, focusing on women aged 50 and older.
Potential Biases
Misclassification of race/ethnicity in cancer registry data may have influenced the results.
Limitations
The study could not evaluate trends among Asian subgroups due to lack of data and had low statistical power for certain breast cancer subtypes.
Participant Demographics
The study included women aged 50 and older from Asian/Pacific Islander, Hispanic, African-American, and non-Hispanic White backgrounds.
Statistical Information
Confidence Interval
95% CI
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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