Association of dual electronic cigarettes and marijuana use with sleep duration among adults from the United States, NHANES 2015–2018

Abstract Electronic cigarette (e-cigarette) use is becoming more widespread, and studies show that they are not absolutely harmless. To investigate the association between the dual use of e-cigarettes and marijuana with sleep duration among adults in the United States, this cross-sectional study used data from 6,573 participants aged 18–64 years from 2015 to 2018 from the National Health and Nutrition Examination Survey database. Chi-square tests and analysis of variance were used for bivariate analyses of binary and continuous variables, respectively.