Supplementary Figure 6: QQ plot for omnibus test of heterogeneity across all cohorts. | Nature Neuroscience

Supplementary Figure 6: QQ plot for omnibus test of heterogeneity across all cohorts.

From: Transancestral GWAS of alcohol dependence reveals common genetic underpinnings with psychiatric disorders

Supplementary Figure 6

QQ plot of p-values for the omnibus (34 degree of freedom) test of heterogeneity across all AA and EU cohorts in the discovery meta-analysis (ncase=14,904; ncontrol=37,944). Heterogeneity is tested with respect to a fixed effects model for meta-analysis of p-values with effective sample size-based weights. Little deviation is observed from the expected null distribution, suggesting limited heterogeneity across cohorts.

Back to article page