Historique
Article de Périodique
Marijuana use trajectories and academic outcomes among college students (2016)
Auteur(s) :
C. K. SUERKEN ;
B. A. REBOUSSIN ;
K. L. EGAN ;
E. L. SUTFIN ;
K. G. WAGONER ;
J. SPANGLER ;
M. WOLFSON
Article en page(s) :
137-145
Domaine :
Drogues illicites / Illicit drugs
Langue(s) :
Anglais
Discipline :
EPI (Epidémiologie / Epidemiology)
Thésaurus géographique
ETATS-UNIS
Thésaurus mots-clés
CANNABIS
;
TRAJECTOIRE
;
ETUDE LONGITUDINALE
;
PERFORMANCE
;
MILIEU SCOLAIRE
;
ADOLESCENT
;
MODELE
Résumé :
Background: Marijuana is the most commonly used illicit drug by college students. Prior studies have established an association between marijuana use and poor academic performance in college, but research on the frequency of marijuana use over the entire college career is limited. The study objective was to examine the association of marijuana use trajectories on academic outcomes, including senior year enrollment, plans to graduate on time, and GPA.
Methods: Data were collected from a cohort of 3146 students from 11 colleges in North Carolina and Virginia at six time points across the college career. Group-based trajectory models were used to characterize longitudinal marijuana use patterns during college. Associations between marijuana trajectory groups and academic outcomes were modeled using random-effects linear and logistic regressions.
Results: Five marijuana trajectory groups were identified: non-users (69.0%), infrequent users (16.6%), decreasing users (4.7%), increasing users (5.8%), and frequent users (3.9%). Decreasing users and frequent users were more likely to drop out of college and plan to delay graduation when compared to non-users. All marijuana user groups reported lower GPAs, on average, than non-users.
Conclusion: These results identify marijuana use patterns that put students at risk for poor academic performance in college. Students who use marijuana frequently at the beginning of the college career are especially at risk for lower academic achievement than non-users, suggesting that early intervention is critical.
Highlights:
Students from 11 colleges in NC and VA were surveyed at 6 time points.
Five marijuana trajectory groups were identified.
Decreasing and frequent users were more likely to drop out or delay graduation.
All marijuana user groups reported lower GPAs, on average, than non-users.
Early intervention may identify students at risk for struggling academically.
Methods: Data were collected from a cohort of 3146 students from 11 colleges in North Carolina and Virginia at six time points across the college career. Group-based trajectory models were used to characterize longitudinal marijuana use patterns during college. Associations between marijuana trajectory groups and academic outcomes were modeled using random-effects linear and logistic regressions.
Results: Five marijuana trajectory groups were identified: non-users (69.0%), infrequent users (16.6%), decreasing users (4.7%), increasing users (5.8%), and frequent users (3.9%). Decreasing users and frequent users were more likely to drop out of college and plan to delay graduation when compared to non-users. All marijuana user groups reported lower GPAs, on average, than non-users.
Conclusion: These results identify marijuana use patterns that put students at risk for poor academic performance in college. Students who use marijuana frequently at the beginning of the college career are especially at risk for lower academic achievement than non-users, suggesting that early intervention is critical.
Highlights:
Students from 11 colleges in NC and VA were surveyed at 6 time points.
Five marijuana trajectory groups were identified.
Decreasing and frequent users were more likely to drop out or delay graduation.
All marijuana user groups reported lower GPAs, on average, than non-users.
Early intervention may identify students at risk for struggling academically.
Affiliation :
Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC, USA