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Fig. 3 | BMC Genetics

Fig. 3

From: Combining controls can improve power in two-stage association studies

Fig. 3

General power differences (%) between methods A and B. Mean power difference is taken as the integral of power difference between methods B and A (see above) over \(\mathbb {R}\) with respect to log-odds ratio. In all cases, 20 000 samples are used overall for a SNP with MAF 0.1, with cutoffs α=5×10−6, β=5×10−4, γ=5×10−8

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