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Christopher L. Ringwalt

2 papers in the library · 30 citations · publishing 2008-2009

Papers

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Hallucinogen-related disorders in a national sample of adolescents: the influence of ecstasy/MDMA use.

Drug and Alcohol Dependence June 4, 2009 Li-Tzy Wu, Christopher L. Ringwalt, Roger D Weiss et al.

Aims: To present the prevalence and correlates of hallucinogen use disorders (HUDs: abuse or dependence) and subthreshold dependence. Methods: The study sample included adolescents aged 12-17 years (N=55,286) who participated in the National Survey on Drug Use and Health (2004-2006). Data were collected with a combination of computer-assisted personal interviewing and audio computer-assisted...

DOI: 10.1016/j.drugalcdep.2009.04.014 (opens in new tab) Full text (opens in new tab) Humans Substance-related disorders N-methyl-3,4-methylenedioxyamphetamine Hallucinogens +9

Hallucinogen Use Disorders Among Adult Users of MDMA and Other Hallucinogens

American Journal on Addictions September 3, 2008 Li-Tzy Wu, Christopher L. Ringwalt, Paolo Mannelli et al. 30 citations

We investigated the prevalence, patterns, and correlates of past‐year DSM‐IV hallucinogen use disorders (HUDs) among past‐year users of MDMA and other hallucinogens from a sample of Americans 18 or older (n = 37,227). Users were categorized as MDMA users and other hallucinogen users. Overall, one in five (20%) MDMA users and about one in six (16%) other hallucinogen users reported at least one...