Psychiatric and substance use comorbid disorders as well as other substance use-related characteristics of the study populations are presented in table 2. Rates of nicotine, alcohol, cannabis and cocaine use were higher among individuals reporting any lifetime psychiatric disorder, mood disorder, anxiety disorder, conduct disorder, personality disorder or ADHD. Individuals with a family history of a SUD or having a diagnosis of a SUD reported higher rates of use of all the substances assessed. Characteristics of individuals who developed dependence on the four substances are presented in supplementary tables available with the online version of this article (Appendix A).
