Declining Prevalence of Marijuana Use Disorders Among Adolescents in the United States, 2002 to 2013

摘要: Objective Little is known about recent trends in marijuana use disorders among adolescents the United States. We analyzed past-year prevalence of DSM-IV adolescents, both overall and conditioned on use. Potential explanatory factors for were explored. Method assembled data from adolescent samples 2002 to 2013 administrations National Survey Drug Use Health (N = 216,852; aged 12−17 years). The main outcome measures odds ratios describing average annual change conditional disorders, estimated models disorder as a function year. Post hoc analyses incorporated potentially risk protective into trend analyses. Results A decline was observed (odds ratio = 0.976 per year; 95% CI = 0.968, 0.984; p Conclusion Past-year US declined by an 24% over period. may be related toward lower rates conduct problems. Identification responsible reduction problems could inform interventions targeting disorders.