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      History of marijuana use and tobacco smoking topography in tobacco-dependent adolescents.

      1 , ,
      Addictive behaviors
      Elsevier BV

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          Abstract

          Adolescent tobacco smokers have higher rates of marijuana (MJ) use than nonsmokers. Because MJ smoking typically involves deeper inhalation and longer breathholding than tobacco smoking, we hypothesized greater puff volume, longer puff duration and puff interval, and higher puff velocity during tobacco smoking among (1) MJ-using teens; (2) teens whose onset of MJ smoking occurred before tobacco (MBT). One hundred and three tobacco-dependent adolescents presented for smoking cessation treatment (66.0% female, 71.0% European American, mean age 15.3+/-1.25 years) smoked one cigarette of their own brand in the laboratory prior to study entry. Topography and associated physiological measures among current recreational (<5 days in a 14-day period) MJ users (n=25), current heavy (>/=5 days in a 14-day period) MJ users (n=22) and current non-MJ-smoking teens (n=56) were compared. There were no differences in tobacco smoking topography or physiological measures by recent MJ-smoking history or by order of substance initiation. Significantly more African American than European American adolescent smokers reported MJ use before tobacco. Our findings in adolescent smokers are consistent with results from adult studies in which history of MJ smoking was not associated with changes in tobacco smoking topography.

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          Author and article information

          Journal
          Addict Behav
          Addictive behaviors
          Elsevier BV
          0306-4603
          0306-4603
          Jun 2004
          : 29
          : 4
          Affiliations
          [1 ] Clinical Pharmacology and Treatment Research Branch, National Institutes of Health, National Institute on Drug Abuse, Intramural Research Program, 5500 Nathan Shock Drive, Baltimore, MD 21224, USA.
          Article
          S0306460304000206
          10.1016/j.addbeh.2004.02.012
          15135551
          70b4f571-25fe-4f2e-8aa1-591650059593
          History

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