Evidence map›Paper›PMID 31177831›Full record

ArticleCanadian journal of psychiatry. Revue canadienne de psychiatrie2020

Temporal Changes in the Cross-Sectional Associations between Cannabis Use, Suicidal Ideation, and Depression in a Nationally Representative Sample of Canadian Adults in 2012 Compared to 2002.

Jillian E Halladay, Catharine Munn, Michael Boyle, Susan M Jack, Katholiki Georgiades

Abstract readComparative Study
In one paragraph

Article in Canadian journal of psychiatry. Revue canadienne de psychiatrie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

14 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  11. Prevalence and factors associated with suicidal ideation amongst college students in the Nelson Mandela Bay Municipality, South Africa.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2021
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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

5 authors.

Jillian E HalladayDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario.ORCID 0000-0003-4393-2572
Catharine MunnDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario.
Michael BoyleDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario.
Susan M JackDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario.
Katholiki GeorgiadesDepartment of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario.

Funding

CIHR
6 · The paper itself

Abstract

backgroundWith the recent legalization of nonmedical cannabis in Canada, it is important to document previous associations between cannabis use and major depressive episode and suicidal ideation, as well as the extent to which these associations have changed over time.

methodsThis study uses pooled data from the 2002 and 2012 Canadian Community Health Survey's Mental Health Component, which are repeated cross-sectional surveys of nationally representative samples of Canadians 15 to 60 years of age (

resultsAt least monthly nonmedical cannabis use was associated with an increased odds of MDE and suicidal ideation, and both associations strengthened in 2012 compared to 2002. Canadians using cannabis at least once a month in 2012 had 1.59 (95% confidence interval [CI], 1.11 to 2.27) times the odds of experiencing suicidal ideation and 1.55 (95% CI, 1.12 to 2.13) times the odds of experiencing MDE compared to those who used cannabis at least once a month in 2002. This temporal change remained after controlling for other substance use.

conclusionsMonthly cannabis use was consistently related to both suicidal ideation and MDE, and these associations were stronger in 2012 compared to 2002. The findings of this study provide a baseline for the association between cannabis use and suicide and depression in the Canadian population that should be reevaluated now that nonmedical cannabis has been legalized.

Indexed as

Suicidal IdeationAdolescentAdultCanadaCross-Sectional StudiesHumansMajor Depressive DisorderMarijuana AbuseMarijuana UseMiddle AgedYoung Adultcannabis use disordersepidemiologygeneral populationmajor depressive disordersubstance use disorderssuicide

Identifiers

PMID31177831
PMCPMC6997972

What OpenQuestion holds

Textmetadata
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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.