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Journal Article

Quality control and conduct of genome-wide association meta-analyses

Authors

Publication date

Apr 2014

Summary

Rigorous organization and quality control (QC) are necessary to facilitate successful genome-wide association meta-analyses (GWAMAs) of statistics aggregated across multiple genome-wide association studies. This protocol provides guidelines for (i) organizational aspects of GWAMAs, and for (ii) QC at the study file level, the meta-level across studies and the meta-analysis output level. Real-world examples highlight issues experienced and solutions developed by the GIANT Consortium that has conducted meta-analyses including data from 125 studies comprising more than 330,000 individuals. We provide a general protocol for conducting GWAMAs and carrying out QC to minimize errors and to guarantee maximum use of the data. We also include details for the use of a powerful and flexible software package called EasyQC. Precise timings will be greatly influenced by consortium size. For consortia of comparable size to the GIANT Consortium, this protocol takes a minimum of about 10 months to complete.

Published in

Nature Protocols

Volume and page numbers

9 , 1192 -1212

DOI

http://dx.doi.org/10.1038/nprot.2014.071

ISSN

16

Subjects

Medicine, Science And Technology, Research, and Biology

Notes

Not held in Research Library - bibliographic reference only

#522603


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