Baseline sociodemographic and clinical characteristics of the sample including cases (<i>n</i> = 37) and controls (<i>n</i> = 19).

<p>^a Diagnosis Schizophrenia (<i>n</i> = 19), Schizophreniform disorder (<i>n</i> = 4), BD with psychotic features (<i>n</i> = 3), MDD with psychotic features (<i>n</i> = 1), Psychotic disorder NOS (<i>n</i> = 1), Schizoaffective disorder (<i>n</i> = 2), Substance-induced psychotic disorder (<i>n</i> = 1, Magnetic resonance images were not available from this participant), Delusional disorder (<i>n</i> = 1).</p><p>^b Substance use does not include alcohol, nicotine or caffeine.</p><p>Abbreviations: AUDIT, the alcohol use disorders identification test; BAI, Beck anxiety inventory; BDI, Beck depression inventory; BMI, body mass index; GAF, global assessment of functioning scale; MDQ, mood disorder questionnaire; OCI-R, obsessive-compulsive inventory revised; SOFAS, social and occupational functioning assessment scale.</p><p>Baseline sociodemographic and clinical characteristics of the sample including cases (<i>n</i> = 37) and controls (<i>n</i> = 19).