Modes of cannabis use: A secondary analysis of an intensive longitudinal natural history study
Addictive behaviors, 2019•Elsevier
Introduction There is a paucity of research on modes of cannabis use (eg, joint vs. blunt),
and further, little consensus on how to accurately assess both modes of use and route of
administration. This secondary analysis used a longitudinal design with data collected daily
to characterize mode of cannabis use. Methods 193 adult daily cannabis users who were
considering quitting at some point enrolled in the study. No treatment was provided. Each
day for 84 days, participants reported on mode of cannabis use (ie, joints, blunts …
and further, little consensus on how to accurately assess both modes of use and route of
administration. This secondary analysis used a longitudinal design with data collected daily
to characterize mode of cannabis use. Methods 193 adult daily cannabis users who were
considering quitting at some point enrolled in the study. No treatment was provided. Each
day for 84 days, participants reported on mode of cannabis use (ie, joints, blunts …
Introduction
There is a paucity of research on modes of cannabis use (e.g., joint vs. blunt), and further, little consensus on how to accurately assess both modes of use and route of administration. This secondary analysis used a longitudinal design with data collected daily to characterize mode of cannabis use.
Methods
193 adult daily cannabis users who were considering quitting at some point enrolled in the study. No treatment was provided. Each day for 84 days, participants reported on mode of cannabis use (i.e., joints, blunts, pipes/vaporizer and food) using an interactive voice response system. We report on single and poly-use of modes across study days and weeks and examine characteristics associated with different modes of use.
Results
White participants were most likely to use pipes/vaporizer, with use on 57% of study days, while Black participants were most likely to use blunts with use on 53% of days. Thus, joint use was less common in both groups. Poly-use of different modes within the same week was very common (i.e., 56% of weeks among White participants and 60% of weeks in Black participants). Age, gender, race, cannabis dependence, presence of others during cannabis use, and alcohol use were associated with different modes of use.
Conclusions
The major limitation of this study was use of a convenience sample and lack of detailed data on vaporizer use. Joint use is no longer the most common mode of use in either White or Black participants and exclusive use of a single modality is uncommon.
Elsevier
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