Figure 1
From: Genetic overlap between type 2 diabetes and depression in Swedish and Danish twin registries

Parameters estimates from bivariate AE twin models for type 2 diabetes and depression, using the Swedish twin sample, with age as a covariate. Best-fit full sex-limitation bivariate AE model fit to Swedish data in opposite-sex dizygotic twins. Asterisk indicates a significant pathway. A indicates addictive genetic effects; E for unique environmental effects; subscript DM for type 2 diabetes; subscript D for depression DM; M for males and F for females. Additive genetic and unique environment contributions to type 2 diabetes and depression are indicated by ADMM, ADM, EDMM and EDM in males, and by ADMF, ADF, EDMF and EDF in females, respectively.