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Prediction of Colorectal Cancer Risk Using a Genetic Risk Score: The Korean Cancer Prevention Study-II (KCPS-II).

Title
Prediction of Colorectal Cancer Risk Using a Genetic Risk Score: The Korean Cancer Prevention Study-II (KCPS-II).
Authors
Jaeseong Jo;Chung Mo Nam;Sun Ha Jee;Heejin Kimm;Eun Jung Park;Yoon Nam Kim;Sun Ju Lee;Sang Yeun Kim;Ji Eun Yun;Jae Woong Sull
Issue Date
2012
Journal Title
Genomics & Informatics
ISSN
1598-866X
Citation
Genomics & Informatics, Vol.10(3) : 175~183, 2012
Abstract
Colorectal cancer (CRC) is among the leading causes of cancer deaths and can be caused by environmental factors as well as genetic factors. Therefore, we developed a prediction model of CRC using genetic risk scores (GRS) and evaluated the effects of conventional risk factors, including family history of CRC, in combination with GRS on the risk of CRC in Koreans. This study included 187 cases (men, 133; women, 54) and 976 controls (men, 554; women, 422). GRS were calculated with most significantly associated single-nucleotide polymorphism with CRC through a genomewide association study. The area under the curve (AUC) increased by 0.5% to 5.2% when either counted or weighted GRS was added to a prediction model consisting of age alone (AUC 0.687 for men, 0.598 for women) or age and family history of CRC (AUC 0.692 for men, 0.603 for women) for both men and women. Furthermore, the risk of CRC significantly increased for individuals with a family history of CRC in the highest quartile of GRS when compared to subjects without a family history of CRC in the lowest quartile of GRS (counted GRS odds ratio [OR], 47.9; 95% confidence interval [CI], 4.9 to 471.8 for men; OR, 22.3; 95% CI, 1.4 to 344.2 for women) (weighted GRS OR, 35.9; 95% CI, 5.9 to 218.2 for men; OR, 18.1, 95% CI, 3.7 to 88.1 for women). Our findings suggest that in Koreans, especially in Korean men, GRS improve the prediction of CRC when considered in conjunction with age and family history of CRC.
URI

http://ir.ymlib.yonsei.ac.kr/handle/22282913/90315
DOI
10.5808/GI.2012.10.3.175
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Biostatistics
1. 연구논문 > 1. College of Medicine > Dept. of Preventive Medicine
1. 연구논문 > 4. Graduate School of Public Health > Graduate School of Public Health
Yonsei Authors
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