Health outcomes associated with long-term regular cannabis and tobacco smoking

Sally E. Rooke*, Melissa M. Norberg, Jan Copeland, Wendy Swift

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


This study aimed to identify patterns of health concerns associated with long-term use of cannabis and tobacco individually, as well as in combination. We recruited 350 adults aged 40 or over who smoked cannabis but not tobacco (cannabis-only group, n=59), smoked both cannabis and tobacco (cannabis/tobacco group, n=88), smoked tobacco but not cannabis (tobacco-only group, n=80), or used neither substance (control group, n=123). Participants completed a survey addressing substance use, diagnosed medical conditions, health concerns relating to smoking cannabis/tobacco, and general health (measured using the Physical Health Questionnaire and the Short Form 36). Several significant differences were found among the four groups. With regard to diagnosed medical conditions, the three smoking groups reported significantly higher rates of emphysema than did the control group (ps < .001). However, all members of the cannabis-only group diagnosed with emphysema were former regular tobacco smokers. Total general health scores, general health subscales, and items addressing smoking-related health concerns also revealed several significant group differences, and these tended to show worse outcomes for the two tobacco smoking groups. Findings suggest that using tobacco on its own and mixing it with cannabis may lead to worse physical health outcomes than using cannabis alone.

Original languageEnglish
Pages (from-to)2207-2213
Number of pages7
JournalAddictive Behaviors
Issue number6
Publication statusPublished - Jun 2013
Externally publishedYes


Dive into the research topics of 'Health outcomes associated with long-term regular cannabis and tobacco smoking'. Together they form a unique fingerprint.

Cite this