Figure 2
From: Genetic overlap and causal associations between smoking behaviours and mental health
Path diagram illustrating genetic multiple regression models. SmkInitg = Genetic component of smoking initiation; CANg = Genetic component of cannabis use; ALCg = Genetic component of alcohol consumption; INSg = Genetic component of insomnia; SCZg = Genetic component of schizophrenia; u = residual genetic variance; bg = Conditional genetic correlation between the genetic components of smoking initiation and schizophrenia as summarized in Table 1; Double-headed arrow represents genetic covariance; Single-headed arrow represents regression paths; Path diagrams for models between all smoking behaviours and psychiatric phenotypes are provided in Supplementary Figures S2-5.
