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. Author manuscript; available in PMC: 2015 May 1.
Published in final edited form as: Genet Epidemiol. 2014 Apr 9;38(4):369–378. doi: 10.1002/gepi.21800

Figure IV.

Figure IV

Scatterplots of -log(p) values across the 4 analysis options using genomic controlled mega-analysis. Red points are 24 SNPs with p-value < 1×10-4 from the main effect only test. Green points are 2 SNPs with p-value < 1×10-4 from the main effect test. Blue points are 18 SNPs with p-value < 1×10-4 from the 1 df test of interaction effect (in the presence of main effect). Cyan points are additional 17 SNPs with p-value < 1×10-4 from the 2 df test of joint main and interaction effects.