Document Detail


Contributions of ethnicity to differential item functioning of cannabis abuse and dependence symptoms.
MedLine Citation:
PMID:  23384380     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Cannabis is the most widely used illicit drug in the United States, and as a result, it is associated with significant public health costs. The present study sought to investigate whether item response theory (IRT) methods could be used to identify meaningful differences in how cannabis abuse and dependence symptoms (determined by criteria from the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition) function as indices of the severity of misuse across two ethnic groups: Native Americans and European Americans.
METHOD: Participants were drawn from two previously collected samples, a population of Native Americans living on contiguous reservations (n = 406) and the University of California at San Francisco Family Alcoholism Study (n = 728). Cannabis use disorder symptoms were assessed using the Semi-Structured Assessment for the Genetics of Alcoholism.
RESULTS: Exploratory factor analysis demonstrated that the cannabis abuse and dependence symptoms indexed a single latent trait measuring severity of cannabis use. IRT and multiple indicators multiple causes (MIMIC) analyses suggested meaningful differences in the functioning of these symptoms across ethnic groups. Withdrawal represented a more prevalent and less severe symptom among Native Americans relative to European Americans, whereas each of the cannabis abuse symptoms and a symptom assessing psychological and health problems resulting from cannabis use were less prevalent but more severe in Native Americans.
CONCLUSIONS: The findings suggest differences in how cannabis use disorders manifest in these populations and thus have implications for the assessment of these disorders as well as theories attempting to explain the increased rates of substance use diagnoses more generally among Native Americans living on reservations.
Authors:
Ian R Gizer; David A Gilder; Philip Lau; Ting Wang; Kirk C Wilhelmsen; Cindy L Ehlers
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of studies on alcohol and drugs     Volume:  74     ISSN:  1938-4114     ISO Abbreviation:  J Stud Alcohol Drugs     Publication Date:  2013 Mar 
Date Detail:
Created Date:  2013-02-06     Completed Date:  2013-07-22     Revised Date:  2014-03-06    
Medline Journal Info:
Nlm Unique ID:  101295847     Medline TA:  J Stud Alcohol Drugs     Country:  United States    
Other Details:
Languages:  eng     Pagination:  320-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
European Continental Ancestry Group / statistics & numerical data*
Factor Analysis, Statistical
Female
Humans
Indians, North American / statistics & numerical data*
Male
Marijuana Abuse / epidemiology*,  ethnology
Marijuana Smoking / epidemiology*,  ethnology
Middle Aged
Severity of Illness Index
United States / epidemiology
Young Adult
Grant Support
ID/Acronym/Agency:
5R37 AA010201/AA/NIAAA NIH HHS; DA030976/DA/NIDA NIH HHS; R01 DA030976/DA/NIDA NIH HHS; R37 AA010201/AA/NIAAA NIH HHS; T32AA007573/AA/NIAAA NIH HHS
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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