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Cannabis Use and Disorder From Childhood to Adulthood in a Longitudinal Community Sample With American Indians


Copeland, William E; Hill, Sherika; Costello, E Jane; Shanahan, Lilly (2017). Cannabis Use and Disorder From Childhood to Adulthood in a Longitudinal Community Sample With American Indians. Journal of the American Academy of Child and Adolescent Psychiatry, 56(2):124-132.e2.

Abstract

OBJECTIVE: Recent changes in DSM criteria require new documentation of the prevalence and developmental sequences of cannabis use disorder (CUD). The goal of this study was to investigate the early course of DSM-5 CUD and its overlap with DSM-IV and consumption constructs in a community-representative sample of American Indians.

METHOD: Data came from the prospective, longitudinal, population-based Great Smoky Mountains Study in North Carolina (N = 1,420, including 349 American Indians). Cannabis use and disorder were assessed during yearly interviews from 9 to 16 years of age and at 19, 21, 26, and 30 years of age (up to 11 assessments per participant from 1993 through 2015).

RESULTS: By 30 years of age, approximately 70% of participants had used cannabis, 34% had used cannabis daily, and 18% had met criteria for DSM-5 CUD. Approximately 1 in 4 cannabis users met criteria for CUD at some point. Those who met criteria initiated use more than 2 years previously (at 13.3 years old) compared with other users. Despite higher risks from increased poverty, American Indians' patterns of use were similar to those of the rest of the sample. Concordance between DSM-5 CUD and DSM-IV abuse or dependence was substantial but was even higher between DSM-5 CUD and daily use.

CONCLUSION: It was common to have used cannabis daily or to have met criteria for DSM-5 CUD by adulthood. DSM-5 CUD was an improvement over DSM-IV diagnostic constructs by raising the threshold for diagnosis.

Abstract

OBJECTIVE: Recent changes in DSM criteria require new documentation of the prevalence and developmental sequences of cannabis use disorder (CUD). The goal of this study was to investigate the early course of DSM-5 CUD and its overlap with DSM-IV and consumption constructs in a community-representative sample of American Indians.

METHOD: Data came from the prospective, longitudinal, population-based Great Smoky Mountains Study in North Carolina (N = 1,420, including 349 American Indians). Cannabis use and disorder were assessed during yearly interviews from 9 to 16 years of age and at 19, 21, 26, and 30 years of age (up to 11 assessments per participant from 1993 through 2015).

RESULTS: By 30 years of age, approximately 70% of participants had used cannabis, 34% had used cannabis daily, and 18% had met criteria for DSM-5 CUD. Approximately 1 in 4 cannabis users met criteria for CUD at some point. Those who met criteria initiated use more than 2 years previously (at 13.3 years old) compared with other users. Despite higher risks from increased poverty, American Indians' patterns of use were similar to those of the rest of the sample. Concordance between DSM-5 CUD and DSM-IV abuse or dependence was substantial but was even higher between DSM-5 CUD and daily use.

CONCLUSION: It was common to have used cannabis daily or to have met criteria for DSM-5 CUD by adulthood. DSM-5 CUD was an improvement over DSM-IV diagnostic constructs by raising the threshold for diagnosis.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:06 Faculty of Arts > Institute of Psychology
06 Faculty of Arts > Jacobs Center for Productive Youth Development
Dewey Decimal Classification:150 Psychology
Date:February 2017
Deposited On:22 Mar 2017 09:59
Last Modified:07 Apr 2017 01:04
Publisher:Elsevier
ISSN:0890-8567
Publisher DOI:https://doi.org/10.1016/j.jaac.2016.11.006
PubMed ID:28117058

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