Prevalence of tobacco smoking among U.S. individuals with primary psychosis: a systematic review of national and regional samples.

Previous reviews of smoking prevalence among individuals with primary psychosis have largely been internationally focused, with little attention given to within- and among subgroup comparisons of U.S. individuals with such disorders. Nationally, smoking prevalence has been decreasing among the general population. We aimed to review national and divisional samples to determine if this downward trend is being reflected among individuals with primary psychotic disorders, if geographical differences exist, and which demographic characteristics are associated with reported rates. We conducted a systematic search of the PubMed, PsycINFO, and Cochrane databases using a floor of 2010. Studies found during a review of references, and studies previously known to the authors but not found during the initial search, were also reviewed. We found 7 papers which reported the prevalence of smoking among individuals with psychotic disorders, and 2 papers which reported the prevalence of general tobacco and/or vaped nicotine use in this population. One eligible paper was excluded due to the same authors publishing more recent data of the same sample. In all, 1 national and 7 divisional samples were included for analysis. Individuals with psychotic disorders still smoke at rates far higher than the general population. We did not find strong support for a downward trend in smoking in this population but did find support for geographical heterogeneity. Smoking interventions must be tested and implemented nationwide. [ABSTRACT FROM AUTHOR]