Evidence map›Paper›PMID 19371493›Full record

Trial reportJournal of studies on alcohol and drugs2009

An item response theory modeling of alcohol and marijuana dependences: a National Drug Abuse Treatment Clinical Trials Network study.

Li-Tzy Wu, Jeng-Jong Pan, Dan G Blazer, Betty Tai, Maxine L Stitzer, Robert K Brooner, George E Woody, Ashwin A Patkar, Jack D Blaine

Open access · bronzeAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Journal of studies on alcohol and drugs, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 2 syntheses or guidelines pooled it, 36 citations in OpenAlex.

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  17. Predicting allergic disease at age four using an atopy predisposition score at age two: the application of item response theory.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2012
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Li-Tzy WuDepartment of Psychiatry and Behavioral Sciences, School of Medicine, Duke Clinical Research Institute, Duke University, Duke University Medical Center, Durham, North Carolina 27710, USA. litzy.wu@duke.edu
Jeng-Jong Pan
Dan G Blazer
Betty Tai
Maxine L Stitzer
Robert K Brooner
George E Woody
Ashwin A Patkar
Jack D Blaine
Duke Medical Center · USClinical Research Institute · USDuke University Hospital · USJohns Hopkins University · USNational Institute on Drug Abuse · US

Funding

NIDA NIH HHS HHSN271200522071C
6 · The paper itself

Abstract

objectiveThe aim of this study was to examine psychometric properties of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), diagnostics criteria for alcohol and marijuana dependences among 462 alcohol users and 311 marijuana users enrolled in two multisite trials of the National Drug Abuse Treatment Clinical Trials Network.

methodDiagnostic questions were assessed by the DSM-IV checklist. Data were analyzed by the item response theory and the multiple indicators-multiple causes method procedures.

resultsCriterion symptoms of alcohol and marijuana dependences exhibited a high level of internal consistency. All individual symptoms showed good discrimination in distinguishing alcohol or marijuana users between high and low severity levels of the continuum. In both groups, "withdrawal" appeared to measure the most severe symptom of the dependence continuum. There was little evidence of measurement nonequivalence in assessing symptoms of dependence by gender, age, race/ethnicity, and educational level.

conclusionsThese findings highlight the clinical utility of the DSM-IV checklist in assessing alcohol- and marijuana dependence syndromes among treatment-seeking substance users.

Indexed as

Diagnostic and Statistical Manual of Mental DisordersModels, PsychologicalAdolescentAdultAge FactorsAlcoholismBiasFemaleHumansMaleMarijuana AbuseRisk FactorsSeverity of Illness IndexSubstance Withdrawal Syndrome

Identifiers

PMID19371493
PMCPMC2670747
OpenAlexW1979161036

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.