The U.S. Mental and Substance Use Disorders Prevalence Study (MDPS) was a landmark research effort designed to provide updated prevalence estimates for mental health conditions – including schizophrenia spectrum conditions – in U.S. adults. In a recent study, researchers used MDPS data to better understand characteristics associated with schizophrenia spectrum conditions. Major depressive episodes, alcohol use disorder and cannabis use disorder were common co-occurring conditions for people with schizophrenia spectrum conditions. Critically, just 26% of people with schizophrenia spectrum conditions received the bare minimum of adequate treatment in the past year. To learn more, see the study in Psychiatric Services.