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Increasing the power of identifying gene × gene interactions in genome‐wide association studies

Open access
Kooperberg, Charles, LeBlanc, Michael·2008·Genetic Epidemiology

Abstract

In this paper we investigate the power to identify gene × gene interactions in genome‐wide association studies. In our analysis we focus on two‐stage analyses: analyses in which we only test for interactions between single nucleotide polymorphisms that show some marginal effect. We give two algorithms to compute significance levels for such an analyses. One involves a Bonferoni correction on the number of interactions that are actually tested, and one is a resampling procedure similar to the one proposed by [Lin (2006) Am. J. Hum. Genet. 78:505–509]. We also give an algorithm to carry out approximate power calculations for studies that plan to use a two‐stage analysis. We find that for most plausible interaction effects a two‐stage analysis can dramatically increase the power to identify interactions compared to a single‐stage analysis based on simulation studies using known genetic models and data from existing genome‐wide association studies. Genet. Epidemiol. 2008. © 2008 Wiley‐Liss, Inc.

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Metadata

Authors
Kooperberg, C., & LeBlanc, M.
Venue
Genetic Epidemiology
Publisher
Wiley
Published
2008-01-16
Volume
32
Issue
3
Pages
255-263
ISSN
  • 0741-0395 (ISSN-L)
  • 1098-2272
OpenAlex
W2132039887
Cited by
203
References
5
FWCI
7.03
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Increasing the power of identifying gene × gene interactions in genome‐wide association studies. https://app.cochat.ai/papers/10.1002/gepi.20300
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Kooperberg, C., & LeBlanc, M. (2008). Increasing the power of identifying gene × gene interactions in genome‐wide association studies. Genetic Epidemiology. https://doi.org/10.1002/gepi.20300

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.