title: Marijuana use disorder symptoms among recent onset marijuana users.
abstract: With recreational marijuana having recently been legalized in a growing number of U.S. states, as well as the increasing support for its legalization among substantial segments of the American public, an understanding of the development of symptoms associated with marijuana use disorders will assist in guiding both education and policy.
  
  
  
  This study examined the prevalence of marijuana use disorder symptoms among a nationally representative sample of recent onset marijuana users ages 12-21 drawn from the National Survey of Drug Use and Health (N=9697).
  
  
  
  The most frequently reported marijuana use symptoms were "tolerance", and "time occupied acquiring, using or recovering from the effects of marijuana". Logistic regression analyses indicated an expected positive association between marijuana use frequency and each marijuana use disorder symptom. In many cases the positive trend was quadratic or cubic, with greater increases between rates among low and moderate frequency marijuana users (i.e. 1-10days per month) than among those using at a higher frequency (i.e. >10days per month). Relationships between marijuana use frequency and marijuana use symptoms were largely consistent according to age, gender and ethnicity.
  
  
  
  Recognizing symptoms of marijuana use disorders among adolescents and young adults using marijuana infrequently may assist in early identification and intervention for those at risk for problem use.
authors.affiliation: Psychology Department, Wesleyan University, United States. Electronic address: ldierker@wesleyan.edu.
authors.forename: Lisa
authors.initials: L
authors.lastname: Dierker
authors.affiliation: Psychology Department, Wesleyan University, United States.
authors.forename: William
authors.initials: W
authors.lastname: Mendoza
authors.affiliation: Department of Psychology, Queens College and the Graduate Center, City University of New York (CUNY), United States; Department of Epidemiology, Mailman School of Public Health, Columbia University, United States.
authors.forename: Renee
authors.initials: R
authors.lastname: Goodwin
authors.affiliation: Department of Population Health, University of North Dakota, United States.
authors.forename: Arielle
authors.initials: A
authors.lastname: Selya
authors.affiliation: Psychology Department, Wesleyan University, United States.
authors.forename: Jennifer
authors.initials: J
authors.lastname: Rose
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D002189:Marijuana Abuse / Q000453:epidemiology*; D000074609:Marijuana Use / Q000453:epidemiology*; D014481:United States / Q000453:epidemiology; D055815:Young Adult
keywords: Marijuana; Marijuana use symptoms