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Two patterns of cannabis use among adolescents: results of a 10-year prospective study using a growth mixture model
Dennis Grevenstein1, Henrik Kröninger-Jungaberle
1a Institute of Medical Psychology, Center for Psychosocial Medicine , University Hospital Heidelberg , Heidelberg , Germany.
Background:
The present study aimed to distinguish cannabis consumption patterns among adolescents and to relate these to life satisfaction, academic achievement, and the use of other psychoactive substances.
Methods:
This study used a prospective design. Cannabis use was measured 14 times over the course of 10 years. Participants were 318 adolescents aged 14 to 15 at the beginning of the study.
Results:
Growth mixture modeling identified 2 latent classes. Class 1 was defined by phases of high-frequency cannabis use, and Class 2 was defined by low-frequency use or nonuse. Class 1 reported decreased satisfaction with life and one's own academic and professional achievement at the age of 24 as well as higher use of tobacco and illicit substances.
Conclusions:
High-frequency use of cannabis predicts a decreased satisfaction with life and one's own academic and professional achievement as well as an increased use of other substances.
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