TY  - JOUR
PY  - 2019//
TI  - Cannabis use disorder among people using cannabis daily/almost daily in the United States, 2002-2016
JO  - Drug and alcohol dependence
A1  - Santaella-Tenorio, Julian
A1  - Levy, Natalie S.
A1  - Segura, Luis E.
A1  - Mauro, Pia M.
A1  - Martins, Silvia S.
SP  - e107621
EP  - e107621
VL  - 205
IS  - 
N2  - BACKGROUND: Cannabis use disorder (CUD) prevalence among people reporting past-year cannabis use declined from 2002-2016. We examined whether similar reductions in CUD were observed among people reporting daily/almost daily cannabis use. We expected that CUD prevalence among people reporting daily/almost daily use would not decrease. <br><br>METHODS: We used 2002-2016 National Survey on Drug Use and Health (NSDUH) data, including 22,651 individuals using cannabis 300+ days in the past year. CUD was defined using DSM-IV criteria for cannabis abuse and/or dependence. Age categories included: 12-17, 18-25, and 26 + . Annual prevalence of CUD, cannabis dependence, cannabis abuse, and each individual abuse/dependence items accounted for the complex survey design. Differences in trends over time were examined by age group. <br><br>RESULTS: From 2002-2016, the prevalence of CUD among people reporting daily/almost daily cannabis use decreased by 26.8% in adolescents, by 29.7% in ages 18-25, and by 37.5% in ages 26 + . Prevalence of DSM-IV cannabis dependence decreased significantly among adolescents (-43.9%) and young adults (-26.8%) but remained stable in adults 26 + . Reductions in most dependence items were observed in young adults, with less consistent patterns in adolescents and adults 26 + . Prevalence of DSM-IV cannabis abuse decreased overall and for each abuse item across all age groups. <br><br>CONCLUSIONS: Contrary to expectations, CUD prevalence decreased significantly across all ages reporting daily/almost daily cannabis use between 2002-2016. Cannabis dependence prevalence decreased for adolescents and young adults and was stable only among adults ages 26+ reporting daily/almost daily cannabis use. Potential drivers of this decrease should be further explored.      Keyword: Cannabis impaired driving  <br><br>Copyright © 2019 Elsevier B.V. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 0376-8716
UR  - http://dx.doi.org/10.1016/j.drugalcdep.2019.107621
ID  - ref1
ER  -