Finnish twin WGCNA blue TG module is preserved in Mexican TG cases/controls. Each data point represents a Finnish twin WGCNA module. A Zsummary value over 2 represents a moderately preserved module. A Zsummary value over 10 provides strong evidence of module preservation. To prevent potential confounding factors influencing expression values, Finnish twin gene expression values were corrected for age, sex, and twin relatedness using the Microarray Quality Control Pipeline as described previously .