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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: Genet Epidemiol. 2013 Mar 6;37(3):10.1002/gepi.21714. doi: 10.1002/gepi.21714

Figure 2.

Figure 2

The inflation factors for different gene-based methods vs. the number of variants in a gene. The inflation factors for the C-alpha statistics (indicated by the dash lines) increase with the number of variants in a gene under population stratification, regardless of the MAF spectrum. The inflation factors for the burden statistics (indicated by the solid lines) quickly converge, but the limit depends on the MAF spectrum in cases and controls.