PRSs was generated for phenotypes related to cognition, personality,
psychiatric disorders, reproduction and smoking behavior based on summary
statistics from 22 published GWASs. The variance explained by the scores
(Nagelkerke-R2) is given on the
x-axis and the P-value from logistic regression for association of the PRS with
CUD on the y-axis (based on analyses of 2,387 individuals with CUD and 48,985
controls). The vertical blue line indicate statistical significance (P=0.0023;
correcting for 22 test). In PRS analyses of psychiatric disorders, individuals
having a diagnosis of the respective psychiatric disorder being analysed (ADHD,
schizophrenia, depressive symptoms and major depressive disorder) were excluded
in the CUD target sample.