Figure 2
From: Novel genes for QTc interval. How much heritability is explained, and how much is left to find?
Explained variance per risk gene for prolonging the QTc interval. The explained variance per risk gene is ordered along the x-axis according to year of discovery and decreasing explained variance. The green diamond represents the finding in the KORA cohort [23] (nGWA = 186, nGWA+replication = 6,612), the blue squares represent the findings of the QTGEN study [25] (n = 13,685), the red triangles those from the QTSCD study [26] (n = 15,854), and the orange circle the finding from the meta-analysis of the TwinsUK/Bright/DCCT-EDIC cohorts [24] (n = 3,558). GWA, genome-wide association.