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. 2012 Aug;107(8):1404-17.
doi: 10.1111/j.1360-0443.2012.03843.x. Epub 2012 Apr 17.

Clinical correlates of co-occurring cannabis and tobacco use: a systematic review

Erica N Peters  1 , Alan J Budney, Kathleen M Carroll
Affiliations

Clinical correlates of co-occurring cannabis and tobacco use: a systematic review

Erica N Peters et al. Addiction. 2012 Aug.

Abstract

Aims: A growing literature has documented the substantial prevalence of and putative mechanisms underlying co-occurring (i.e. concurrent or simultaneous) cannabis and tobacco use. Greater understanding of the clinical correlates of co-occurring cannabis and tobacco use may suggest how intervention strategies may be refined to improve cessation outcomes and decrease the public health burden associated with cannabis and tobacco use.

Methods: A systematic review of the literature on clinical diagnoses, psychosocial problems and outcomes associated with co-occurring cannabis and tobacco use. Twenty-eight studies compared clinical correlates in co-occurring cannabis and tobacco users versus cannabis- or tobacco-only users. These included studies of treatment-seekers in clinical trials and non-treatment-seekers in cross-sectional or longitudinal epidemiological or non-population-based surveys.

Results: Sixteen studies examined clinical diagnoses, four studies examined psychosocial problems and 11 studies examined cessation outcomes in co-occurring cannabis and tobacco users (several studies examined multiple clinical correlates). Relative to cannabis use only, co-occurring cannabis and tobacco use was associated with a greater likelihood of cannabis use disorders, more psychosocial problems and poorer cannabis cessation outcomes. Relative to tobacco use only, co-occurring use did not appear to be associated consistently with a greater likelihood of tobacco use disorders, more psychosocial problems or poorer tobacco cessation outcomes.

Conclusions: Cannabis users who also smoke tobacco are more dependent on cannabis, have more psychosocial problems and have poorer cessation outcomes than those who use cannabis but not tobacco. The converse does not appear to be the case.

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Conflict of interest statement

Declaration of Interest: Drs. Peters and Carroll have no conflicts to declare.

Figures

Figure 1
Figure 1
Summary of the article selection process as recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Statement.
See this image and copyright information in PMC

Comment in

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