In this paper we estimate the risk of becoming cannabis dependent within 24 months after
first use of cannabis and examine subgroup variation in this risk. The study estimates are …

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 …

This chapter describes selected features of cannabis epidemiology, with a focus upon recent
evidence from field studies of cannabis dependence. An epidemiologist's interest in …

Objectives: To determine incidence and patterns of natural course of cannabis use and
disorders as well as cohort effects in a community sample of adolescents and young adults …

Objectives: To determine risk factors of incident onset of use, abuse and dependence of
cannabis in a community sample of adolescents and young adults. Methods: Risk factors …

Aims. To examine the relationship between cannabis use in adolescence and the onset of
other illicit drug use. Method. Data were gathered over the course of a 21‐year longitudinal …

OBJECTIVE: To investigate age and sex differences in factors associated with the onset of
cannabis use among adolescents. METHODS: A representative sample of schoolchildren …

Cannabis is the most widely used illegal drug in the US population. Surveys have estimated
that the lifetime prevalence rate for cannabis dependence is approximately 4%. Though the …

Aims/design. This study reports findings concerning risk factors for first," repeated" and"
regular" use of cannabis in respondents (N= 1228) who were aged 14‐17 years at the outset …

The purpose of this study was to determine the risk of Diagnostic and Statistical Manual of
Mental Disorders-Fourth Edition (DSM-IV) cannabis abuse and dependence at different …