期刊
EUROPEAN JOURNAL OF HUMAN GENETICS
卷 19, 期 2, 页码 243-245出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ejhg.2010.185
关键词
breast cancer; risk markers; summary score; generalizability; diverse populations
资金
- National Institute of Health [CA63464, CA54281, CA098758, CA132839]
- California Breast Cancer Research program [15UB-8402]
Genome-wide association studies (GWAS) have identified common variants associated with breast cancer risk among women of European and Asian ancestries. To assess the generalizability across ethnic/racial populations of a risk score derived from genotyping 12 highly replicated breast cancer GWAS hits, we performed a case-control study (2224 cases and 2827 controls) nested in the Multiethnic Cohort (MEC) study, which was initiated in 1993-1996 and consists of subjects mainly from European-American, African-American, Native Hawaiian, Japanese and Latino populations. When viewed as a summary risk score, the total number of risk alleles carried by women was significantly associated with breast cancer risk overall (OR per allele, 1.09; 95% CI, 1.06-1.12; P=2.0 x 10(-10)) and in all populations except African-Americans, in which no significant association was observed (OR, 1.03; 95% CI, 0.98-1.08). In aggregate, the number of risk alleles is strongly associated with breast cancer risk in all populations studied except African-Americans. These results emphasize the need for large-scale association studies of multiple racial/ethnic groups for discovery and characterization of risk alleles relevant to all populations in the United States. European Journal of Human Genetics (2011) 19, 243-245; doi:10.1038/ejhg.2010.185; published online 24 November 2010 populations
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