Auteur N. LIEBREGTS

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Cannabis dependence and peer selection in social networks of frequent users

N. LIEBREGTS ; A. BENSCHOP ; P. VAN DER POL ; M. VAN LAAR ; R. DE GRAAF ; W. VAN DEN BRINK ; D. J. KORF | 2011
Dans Contemporary Drug Problems (Vol.38, n°1, Spring 2011) Article : Périodique

In a Dutch longitudinal study on the dynamics of cannabis dependence, at baseline 600 frequent cannabis users (> = 3 days cannabis use per week in past 12 months) aged 18-30 years were interviewed. Nearly half of all participants (42%) met DSM-I[...]

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Cross-sectional and prospective relation of cannabis potency, dosing and smoking behaviour with cannabis dependence: an ecological study

P. VAN DER POL ; N. LIEBREGTS ; T. M. BRUNT ; J. VAN AMSTERDAM ; R. DE GRAAF ; D. J. KORF ; W. VAN DEN BRINK ; M. VAN LAAR | 2014
Dans Addiction (Vol.109, n°7, July 2014) Article : Périodique

Background and Aims: Increased delta-9-tetrahydrocannabinol (THC) concentrations in cannabis may lead to higher THC exposure, cannabis dependence and treatment need, but users may also adapt the actual intake of THC through reduced inhalation of[...]

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Individual, social, and environmental factors associated with different patterns of stimulant use: A cross-sectional study from five European countries

M. ROSENKRANZ ; A. O'DONNELL ; M. S. MARTENS ; H. ZURHOLD ; P. DEGKWITZ ; N. LIEBREGTS ; M. BARTAK ; M. ROWICKA ; U. VERTHEIN | 2023
Dans European Addiction Research (Vol.29, n°3, July 2023) Article : Périodique

INTRODUCTION: Amphetamine-type stimulants (ATSs) are the second most commonly consumed class of illicit drugs globally, but there is limited understanding of the precise factors associated with problematic versus controlled ATS consumption. This[...]

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Mental health differences between frequent cannabis users with and without dependence and the general population

P. VAN DER POL ; N. LIEBREGTS ; R. DE GRAAF ; M. TEN HAVE ; D. J. KORF ; W. VAN DEN BRINK ; M. VAN LAAR | 2013
Dans Addiction (Vol.108, n°8, August 2013) Article : Périodique

Aims: To compare the prevalence of mental disorders between frequent cannabis users with and without dependence and the general population. Design: Cross-sectional comparison of interview data. Setting: Enriched community sample of frequent ca[...]

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Persistence and desistance in heavy cannabis use: the role of identity, agency, and life events

N. LIEBREGTS ; P. VAN DER POL ; R. DE GRAAF ; M. VAN LAAR ; W. VAN DEN BRINK ; D. J. KORF | 2015
Dans Journal of Youth Studies (Vol.18, n°5, 2015) Article : Périodique

Many cannabis users 'mature out' of their drug use, and factors of cannabis use cessation have been identified. However, very little in-depth knowledge is available about the mechanisms underlying this phenomenon. Criminological studies have gai[...]

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Predicting the transition from frequent cannabis use to cannabis dependence: A three-year prospective study

P. VAN DER POL ; N. LIEBREGTS ; R. DE GRAAF ; D. J. KORF ; W. VAN DEN BRINK | 2013
Dans Drug and Alcohol Dependence (Vol.133, n°2, December 2013) Article : Périodique

Background: Frequent cannabis users are at high risk of dependence, still most (near) daily users are not dependent. It is unknown why some frequent users develop dependence, whereas others do not. This study aims to identify predictors of first[...]

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The role of leisure and delinquency in frequent cannabis use and dependence trajectories among young adults

N. LIEBREGTS ; P. VAN DER POL ; M. VAN LAAR ; R. DE GRAAF ; W. VAN DEN BRINK ; D. J. KORF | 2015
Dans International Journal of Drug Policy (Vol.26, n°2, February 2015) Article : Périodique

Background: The link between leisure and cannabis use has been widely studied, but less so for young adults, and rarely with a focus on frequent cannabis use. Also, little is known about how changes in leisure develop over time and how they are [...]

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The role of parents, peers, and partners in cannabis use and dependence trajectories among young adult frequent users

N. LIEBREGTS ; P. VAN DER POL ; M. VAN LAAR ; R. DE GRAAF ; W. VAN DEN BRINK ; D. J. KORF | 2013
Dans Contemporary Drug Problems (Vol.40, n°4, Winter 2013) Article : Périodique

In a 3-year qualitative longitudinal study the role of social relationships in cannabis use and dependence in young adults (all frequent users at baseline) was explored. Overall, cannabis use and dependence declined. Changes in use were, for a c[...]

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The role of study and work in cannabis use and dependence trajectories among young adult frequent cannabis users

N. LIEBREGTS ; P. VAN DER POL ; M. VAN LAAR ; R. DE GRAAF ; W. VAN DEN BRINK ; D. J. KORF | 2013
Dans Frontiers in Psychiatry (Vol.4, 2013) Article : Périodique

Life course theory considers events in study and work as potential turning points in deviance, including illicit drug use. This qualitative study explores the role of occupational life in cannabis use and dependence in young adults. Two and thre[...]

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Validation of self-reported cannabis dose and potency: an ecological study

P. VAN DER POL ; N. LIEBREGTS ; R. DE GRAAF ; D. J. KORF ; W. VAN DEN BRINK ; M. VAN LAAR | 2013
Dans Addiction (Vol.108, n°10, October 2013) Article : Périodique

Aims: To assess the reliability and validity of self-reported cannabis dose and potency measures. Design: Cross-sectional study comparing self-reports with objective measures of amount of cannabis and delta-9-tetrahydrocannabinol (THC) concentr[...]

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Where, when and with whom: Cannabis use, settings and self-regulation rules

K. SKLIAMIS ; A. BENSCHOP ; N. LIEBREGTS ; D. J. KORF | 2021
Dans Contemporary Drug Problems (Vol.48, n°3, September 2021) Article : Périodique

This article examines to what extent and how cannabis users in different countries, with different cannabis legislation and policies practice normalization and self-regulation of cannabis use in everyday life. Data were collected in a survey amo[...]

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