Fig. 5
Partial plots for associations between anger and right-hand 2D:4D within individuals distinguished by OXTR rs53576. Regression analysis for the association between anger (z-score) and 2D:4D ratios of the right hand (R2D:4D; z-score) with control for sex: AA carriers (N = 282, beta = 0.190, t = 3.232, p = 0.001; R2 (model) = 0.051, p(model) = 0.001); AG carriers (N = 755, beta = 0.044, t = 1.194, p = 0.233; R2 (model) = 0.011, p(model) = 0.017); GG carriers (N = 668, beta = − 0.016, t = − 0.416, p = 0.677; R2 (model) = 0.001, p(model) = 0.728)