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  • Title: Marijuana use predicts onset of current little cigar use in a national sample of US young adults.
    Author: Cohn AM, Johnson AL, Fryer CS, Villanti AC.
    Journal: Drug Alcohol Depend; 2018 Sep 01; 190():235-241. PubMed ID: 30064060.
    Abstract:
    BACKGROUND: This study examined whether young adult marijuana use increases risk of subsequent large cigar (LC) and little cigar/cigarillo (LCC) use among naïve users. METHODS: Data were from 8 waves of the Truth Initiative Young Adult Cohort, a national sample of US young adults aged 18-34 assessed every 6 months. Discrete-time survival analyses examined whether baseline ever marijuana use among never cigar users predicted onset of past 30-day LC and LCC use and whether baseline ever LC and LCC use among never marijuana users predicted onset of past 30-day marijuana use. Models adjusted for demographics, past 30-day alcohol use, past 30-day tobacco product use, and menthol tobacco use. RESULTS: In adjusted models, baseline ever marijuana use predicted onset of past 30-day LCC but not LC use. Cumulative risk ratios showed that 23% of ever marijuana users at baseline reported past 30-day use of LCCs by the end of wave 8 compared to just 3% of baseline never marijuana users. Race and past 30-day use of specific tobacco products also predicted onset of past 30-day LC and LCC use. Past 30-day use of alcohol uniquely predicted onset of past 30-day LCC use but not LC use. Baseline ever LC and LCC use did not predict onset of past 30-day marijuana use in models that adjusted for demographics, alcohol, and specific tobacco product use. CONCLUSIONS: Ever marijuana use among US young adults may be an important predictor of onset of regular LCC use. Findings suggest different pathways linking marijuana to different cigar sub-types.
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