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Mental and substance use disorders prevalence study
Background and methods
Guyer, H., Ringeisen, H., Dever, J. A., Liao, D., Peytchev, A., Carr, C. M., Geiger, P., Stambaugh, L. F., Smith, T. K., Dixon, L., Olfson, M., First, M., Stroup, S., Chwastiak, L. A., Monroe-DeVita, M., Swanson, J., Swartz, M. S., Kessler, R. C., Gibbons, R., ... Edlund, M. (2024). Mental and substance use disorders prevalence study: Background and methods. International Journal of Methods in Psychiatric Research, 33(1), Article e2000. https://doi.org/10.1002/mpr.2000
Objective: The Mental and Substance Use Disorders Prevalence Study (MDPS) builds upon previous epidemiologic studies to provide estimates of prevalence and treatment rates of mental and substance use disorders among adults aged 18 to 65 in the U.S. The study background and methods are described. Method: The MDPS employed novel techniques such as the inclusion of household, prison, homeless and state psychiatric hospital populations, a semi-structured clinical interview administered by trained clinical interviewers to assess disorders, the assessment of both past year and lifetime schizophrenia spectrum disorder (SSD) using full Diagnostic and Statistical Manual 5 (DSM) criteria, as well as other mental and substance use disorders, and video-based interviewing. Population specific and combined sample weights were developed to estimate nationally representative prevalence and treatment rates. Results: Data collection was conducted between October 2020 and October 2022 resulting in 5,679 clinical interviews. The statistical weighting and analytic plan are described. Weighted response rates and reasons for non-response are provided for each study population. Conclusions: The MDPS successfully developed and employed novel techniques to estimate the prevalence and treatment rates of mental and substance use disorders in both household and non-household populations, including some of the most impairing disorders such as SSD.