Evidence map›Paper›PMID 29052952›Full record

ArticleEarly intervention in psychiatry2019

Factor structure of the Cannabis Experiences Questionnaire in a first-episode psychosis sample.

Michael L Birnbaum, Sean D Cleary, Claire Ramsay Wan, Luca Pauselli, Michael T Compton

Open access · greenAbstract read
In one paragraph

Article in Early intervention in psychiatry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Assessing Cannabis Use in People with Psychosis.Cannabis and cannabinoid research · 2024
    Review
  5. Article
  6. Article
  7. Article
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

5 authors at 4 institutions in 1 country.

Michael L BirnbaumThe Zucker Hillside Hospital, Psychiatry Research, Northwell Health, Glen Oaks, New York.ORCID 0000-0002-4285-7868
Sean D ClearyMilken Institute School of Public Health, Department of Epidemiology and Biostatistics, The George Washington University, Washington, District of Columbia.
Claire Ramsay WanCambridge Health Alliance, Somerville, Massachusetts.
Luca PauselliDepartment of Psychiatry, Columbia University College of Physicians & Surgeons, New York, New York.
Michael T ComptonDepartment of Psychiatry, Columbia University College of Physicians & Surgeons, New York, New York.
Columbia University · USCambridge Health Alliance · USMilken Institute · USNorthwell Health · US

Funding

First-Episode Psychosis and Pre-Onset Cannabis UseR01MH081011 · NIMH · GEORGE WASHINGTON UNIVERSITY · PI MYERS, NEELY A · 2008 to 2012
$1.7M
NIMH NIH HHS R01 MH081011
6 · The paper itself

Abstract

aimThe Cannabis Experiences Questionnaire (CEQ) was developed to measure the subjective experiences of cannabis use both during and after intoxication. Despite the need to better understand the nature of the complex and significant relationship between cannabis use and early psychosis, this questionnaire has rarely been used in individuals with first-episode psychosis.

methodsWe conducted a set of factor analyses using CEQ data from 194 first-episode psychosis patients who used cannabis in order to uncover the underlying factor structure of the questionnaire and thus the overarching types of psychological experiences during/after using cannabis in young people with psychotic disorders.

resultsOur exploratory factor analysis identified 4 subscales, including: Distortions of Reality and Self-Perception (Factor 1), Euphoria Effects (Factor 2), Slowing and Amotivational Effects (Factor 3), and Anxiety and Paranoia Effects (Factor 4).

conclusionsElucidating the underlying factor structure of the CEQ in first-episode psychosis samples could help researchers move towards a deeper understanding of the types of experiences associated with cannabis intoxication among young adults with first-episode psychosis and could inform the development of programs designed to reduce use, improve the course of illness, and possibly delay or prevent the onset of psychotic symptoms in those at risk.

Indexed as

AdolescentAdultFactor Analysis, StatisticalFemaleHumansMaleMarijuana SmokingPsychotic DisordersSurveys and QuestionnairesYoung AdultcannabisCannabis Experiences Questionnairefirst-episode psychosismarijuanaschizophrenia

Identifiers

PMID29052952
PMCPMC5910296
OpenAlexW2766343796

What OpenQuestion holds

Textmetadata
LicenceTDM
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.