Journal
CANCER INVESTIGATION
Volume 28, Issue 9, Pages 963-968Publisher
TAYLOR & FRANCIS INC
DOI: 10.3109/07357907.2010.496759
Keywords
Breast carcinoma; HER-2/neu; Population-based study; SEER program
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Funding
- National Cancer Institute [N01-PC-35133, N01-PC-35135, N01-PC-35136, N01-PC-35137, N01-PC-35138, N01-PC-35139, N01-PC-35141, N01-PC-35142, N01-PC-35143, N01-PC-35145]
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The goal of this study was to estimate prevalence of HER-2 positive tumors in a population-based sample of 1026 women diagnosed in 2005 with early stage breast cancer. We modeled the relationship between patient and tumor characteristics and HER-2. HER-2 positive estimates were 19% for women aged < 49 years and 15% aged >= 50 years. HER-2 varied by tumor grade and size in women aged < 49 years but was not significant in multivariate analysis. Tumor grade and race were associated with HER-2 for women aged >= 50 years after controlling for other variables. HER-2 varies by age and by race and tumor in older women.
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