Genetic Influences on the Covariance and Genetic Correlations in a Bivariate Twin Model: An Application to Well-Being.

ABSTRACT: The distinction between genetic influences on the covariance (or bivariate heritability) and genetic correlations in bivariate twin models is often not well-understood or only one is reported while the results show distinctive information about the relation between traits. We applied bivariate twin models in a large sample of adolescent twins, to disentangle the association between well-being (WB) and four complex traits (optimism, anxious-depressed symptoms (AD), aggressive behaviour (AGG), and educational achievement (EA)). Optimism and AD showed respectively a strong positive and negative phenotypic correlation with WB, the negative correlation of WB and AGG is lower and the correlation with EA is nearly zero. All four traits showed a large genetic contribution to the covariance with we

SUBMITTER: de Vries LP 

PROVIDER: S-EPMC8093176 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature