https://scholars.lib.ntu.edu.tw/handle/123456789/521778
標題: | Data-dredging gene-dose analyses in association studies: Biases and their corrections | 作者: | WEN-CHUNG LEE Huang H.-Y. |
公開日期: | 2005 | 卷: | 14 | 期: | 12 | 起(迄)頁: | 3004-3006 | 來源出版物: | Cancer Epidemiology Biomarkers and Prevention | 摘要: | To examine the joint effect of multiple loci on disease risk, many case-control association studies used "gene-dose analyses." However, some researchers defined high-risk genotypes (or alleles) as those that have higher genotypic (allelic) frequencies in the case group compared with the control group in the study. This will lead to the total number of the "high-risk" genotypes (alleles) tending to be higher for the cases than for the controls as well, even if none of the studied loci were related to the disease. Monte-Carlo simulations done in this study showed that such a "data-dredging" gene-dose analysis could produce grossly biased results. A permutation correction method was proposed which could correct the biases very effectively. Copyright ? 2005 American Association for Cancer Research. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-30344469395&doi=10.1158%2f1055-9965.EPI-05-0605&partnerID=40&md5=b8eb5b3dbdf0563e7b6ccf7668b002f5 https://scholars.lib.ntu.edu.tw/handle/123456789/521778 |
ISSN: | 1055-9965 | DOI: | 10.1158/1055-9965.EPI-05-0605 | SDG/關鍵字: | DNA; folic acid; article; gene dosage; gene frequency; gene locus; genetic analysis; genotype; high risk patient; human; mathematical analysis; Monte Carlo method; priority journal; risk assessment; simulation; Bias (Epidemiology); Case-Control Studies; Computer Simulation; Genotype; Humans; Odds Ratio |
顯示於: | 流行病學與預防醫學研究所 |
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