OBJECTIVE The authors investigated whether the transition from licit drug use to marijuana use is determined by particular risk factors, as specified by the gateway hypothesis. They also evaluated the accuracy of the "gateway sequence" (illicit drug use following licit drugs) for predicting a diagnosis of substance use disorder. METHOD Boys who consumed licit drugs only (N=99), boys who consu...

The consumption of a wide variety of substances determines, through different mechanisms, the onset of sleep disturbances, which has a considerable impact on the neurobiology of sleep-wake circadian rhythm. Many substances are widely used and easy to find, such as alcohol, nicotine and caffeine and are frequently the cause of degradation in quality and quantity of sleep. Furthermore, substance ...

Background: Drug abuse is one of the important variables influencing protective sexual behavior. The objective of this study was to explore how risky sexual behaviors develop in drug abusing women using human ecological theory.Methods: In this study, we used a descriptive exploratory approach. The participants were 32 drug abusing women from two of the selected drop-in centers (DICs) in south T...

Poor mental health and substance use are associated with food insecurity, however, their potential combined effects have not been studied. This study explored independent associations and effect modification between lifetime substance use and mood disorder in relation to food insecurity. Poisson regression analysis of data from British Columbia respondents (n = 13,450; 12 years+) in the 2007/08...

http://dx.doi.org/10.1037/0000019-012 APA Handbook of Trauma Psychology: Vol. 1. Foundations in Knowledge, S. N. Gold (Editor-in-Chief) Copyright © 2017 by the American Psychological Association. All rights reserved. Substance use disorder (SUD) is characterized by an intense, enduring, and often irresistible desire for subjective effects of substances (cravings); impaired insight; poor judgmen...

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OBJECTIVE To describe the prevalence of illicit drug consumption among adolescents and the motives that led these adolescents to try them. METHODS Cross-sectional study with 2,499 adolescents aged 17 years, based on a cohort called EPITeen, which was started in 2003/2004 with adolescents born in 1990 who studied in public and private schools of the city of Porto, Portugal. A new assessment wa...