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Chunk #22 — Design — Example of coronary heart disease (CHD)

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Cohorts for Heart and Aging Research in Genomic Epidemiology (CHARGE) Consortium: Design of prospective meta-analyses of genome-wide association studies from 5 cohorts.
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of the Analysis Committee were adopted, and a threshold of 5 × 10−8 was selected for genome-wide statistical significance. Analyses in progress include about 1700 MIs and 2300 CHD events among about 29,000 eligible patients. Each cohort conducted its own analysis, and results were uploaded to a secure share site for the fixed-effects meta-analysis. Even with this number of events (Supplemental Figure 2), power is good for only for relatively high MAFs (> 0.25) and large relative risks (> 1.3).