Skip to main content
. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Addiction. 2012 Apr 17;107(8):1404–1417. doi: 10.1111/j.1360-0443.2012.03843.x

Table 5.

Association of Co-Occurring Cannabis and Tobacco vs. Tobacco Only Use with Tobacco Outcomes.

Study Group of Co-Occurring Users Outcome Statistic
Abrantes, 2009 Any lifetime cannabis use + lifetime daily tobacco smoker Adjusted odds ratio of making tobacco smoking quit attempt in the last year 0.80
Abrantes, 2009 Any lifetime cannabis use + lifetime daily tobacco smoker Adjusted odds ratio of successfully quitting tobacco in the last year 0.38*
Ford, 2002 Past-month cannabis use (any) + tobacco smoker Adjusted odds ratio of continued tobacco smoking at 13 years 1.94*
Ford, 2002 Past-month cannabis use (daily for > 2 weeks) + tobacco smoker Adjusted odds ratio of continued tobacco smoking at 13 years 3.09
Gourlay, 1994 Past-month cannabis users + tobacco smokers Unadjusted odds ratio of non-smoking for 28 days prior to week 26 follow-up 0.4*
Haskins, 2010 Daily cannabis users + tobacco smokers Adjusted odds ratio of quitting smoking during pregnancy 0.54*
Haskins, 2010 Weekly cannabis users + tobacco smokers Adjusted odds ratio of quitting smoking during pregnancy 1.00
Haskins, 2010 Monthly cannabis users + tobacco smokers Adjusted odds ratio of quitting smoking during pregnancy 0.99
Metrik, in press Weekly cannabis user + tobacco smoker Adjusted odds ratio of 7-day point prevalence smoking abstinence 1.13
Metrik, in press Infrequent cannabis user + tobacco smoker Adjusted odds ratio of 7-day point prevalence smoking abstinence 0.96
Patton, 2005 Daily cannabis use + cigarette smoking at age 20 Adjusted odds ratio of no tobacco use in month before age 20 assessment 0.7
Patton, 2005 Weekly cannabis use + cigarette smoking at age 20 Adjusted odds ratio of no tobacco use in month before age 20 assessment 1.0
Patton, 2005 Monthly cannabis use + cigarette smoking at age 20 Adjusted odds ratio of no tobacco use in month before age 20 assessment 0.8
Stapleton, 2009 Cannabis use in past 30 days + cigarette smoking Percent in group with biochemically-verified tobacco abstinence for final 2 weeks of treatment 40% vs. 55.3%*

Note. Comparison group for all studies was group of tobacco only smokers. Asterisks indicate that co-occurring users reported significantly poorer outcomes than tobacco only smokers.