Hashish and Tobacco Use and Co-use: Trajectories and Correlates From Early Adolescence to Rising Maturity


Obtainable on-line 24 August 2019

Drug and Alcohol Dependence


Co-use prevalence elevated from 0.3% at W1 (age 11.5) to 9.5% at W10 (age 20.7).

Likelihood of co-use was greater amongst White than Hispanic or Asian contributors.

Co-use was usually related to poorer functioning in rising maturity.

There may be some proof of racial/ethnic disparities in co-use associated outcomes.



Hashish and tobacco co-use is a rising concern, but little is thought about its developmental course or related outcomes throughout rising maturity. This examine examines developmental trajectories of cannabis and tobacco co-use from adolescence to rising maturity, associations of co-use trajectories with 4 domains of functioning, and variations throughout racial/ethnic teams.


Survey knowledge come from a racially/ethnically various and predominantly California-based cohort that accomplished 10 surveys from 2008 (wave 1: imply age 11.5; n = 6,509) to 2018 (wave 10: imply age 20.7; n = 2,429). Co-use was outlined as use of each cannabis and tobacco (cigarettes or smokeless tobacco) up to now 30 days. Trajectories of use have been examined utilizing latent progress modeling in a structural equation modeling framework.


Prevalence of cannabis and tobacco co-use elevated from 0.3% at wave 1 to 9.5% at wave 10, with common possibilities of co-use greater amongst non-Hispanic white versus Hispanic or Asian contributors. Larger common chance of co-use was related to better delinquency, extra psychological well being signs, and poorer bodily well being throughout rising maturity. Larger fee of change within the chance of co-use over time was related to better delinquency, however higher social functioning and fewer bodily illnesses. There was some proof of racial/ethnic disparities in functioning, even at comparable ranges of co-use.


Hashish and tobacco co-use deserves better consideration, particularly relating to its results on functioning throughout rising maturity. Outcomes additionally emphasize the necessity for future analysis to deal with racial/ethnic disparities associated to co-use and related outcomes.

Key phrases







rising adults

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© 2019 Revealed by Elsevier B.V.


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