Background: In this research, the 'natural history'of cannabis dependence is probed, using
data from a large epidemiological sample of cannabis users followed from 1981 through …

Eighty one percent of a sample of long-term cannabis users was followed up at 1 year
(162/200). Half (51%) were daily smokers, while 20% had substantially decreased or …

Objectives The symptomatology of cannabis dependence remains ill‐defined and its
importance controversial. Compared with alcohol dependence, the symptom profile of …

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 …

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 …

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 …

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 …

Background Cannabis is the most widely consumed illicit substance in America, with
increasing rates of use. Some theorists tend to link frequency of use with cannabis …

Cannabis is the most commonly used illicit substance in the United States. According to the
2002 National Household Survey on Drug Abuse, there were 14.6 million cannabis users …

Cannabis is the most widely used illicit drug in the United States, yet the role of genetics in
individual symptoms associated with cannabis use disorders has not been evaluated. The …