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J Clin Psychiatry. 2017 Nov/Dec;78(9):1404-1413. doi: 10.4088/JCP.16m10948.

Cannabis Use and Cannabis Use Disorders Among Youth in the United States, 2002-2014.

Author information

1
5600 Fishers Lane, #15E85C, Rockville, MD 20857. beth.han@samhsa.hhs.gov.
2
Substance Abuse and Mental Health Services Administration, Rockville, Maryland, USA.
3
National Institute on Drug Abuse, National Institutes of Health, Bethesda, Maryland, USA.
4
Office of the Assistant Secretary for Planning and Evaluation, US Department of Health and Human Services, Washington, DC, USA.

Abstract

OBJECTIVE:

To examine trends in past-year cannabis use (CU) and cannabis use disorders (CUD) among youth in the United States, when related changes began, and factors associated with these changes.

METHODS:

This study used data from 288,300 persons aged 12-17 years who participated in the 2002-2014 National Survey on Drug Use and Health. Descriptive analyses and bivariable and multivariable logistic regressions were applied (using the year 2002 as the reference group for most analyses).

RESULTS:

The prevalence of past-year CU among youth decreased from 15.8% in 2002 to 13.1% in 2014 (this downward trend occurred during 2002-2007 only [β = -0.0540, P < .0001]). Among youth cannabis users, the prevalence of past-year CUD decreased from 27.0% in 2002 to 20.4% in 2014, with a downward trend starting in 2011 (β = -0.0970, P = .0001). During 2002-2014, the prevalence of past-year tobacco use and alcohol use decreased and prevalences of past-year CU increased among tobacco users and among alcohol users. Our multivariable results suggest that declines in past-year tobacco use (but not alcohol use) among youth were associated with declines in past-year CU during 2010-2014. Past-year CU and CUD were higher among racial/ethnic minorities (except for non-Hispanic Asians and Hawaiians/Pacific Islanders for CU) than non-Hispanic whites and were similar between male and female youth during 2002-2014.

CONCLUSIONS:

In the United States, compared to 2002, even after adjusting for covariates, CU decreased among youth during 2005-2014, and CUD declined among youth cannabis users during 2013-2014. Associations between declines in tobacco use and decreased CU suggest the importance of tobacco use control and prevention among youth.

PMID:
28686820
DOI:
10.4088/JCP.16m10948

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