Evidence map›Paper›PMID 30260680›Full record

ArticleCanadian journal of psychiatry. Revue canadienne de psychiatrie2019

Sex Differences in the Association Between Cannabis Use and Suicidal Ideation and Attempts, Depression, and Psychological Distress Among Canadians.

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

Erratum issuedOpen access · bronzeAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Canadian journal of psychiatry. Revue canadienne de psychiatrie, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 25 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing 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

25 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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  6. Early Life Exposure to ΔCannabis and cannabinoid research · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Jillian E Halladay1 Department of Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada.ORCID 0000-0003-4393-2572
Michael H Boyle2 Department of Health Research Methods, Evidence, and Impact, Psychiatry & Behavioural Neurosciences, Offord Centre for Child Studies, McMaster University, Hamilton, Ontario, Canada.
Catharine Munn3 Department of Psychiatry and Behavioural Neurosciences, Peter Boris Centre for Addictions Research, McMaster University, Hamilton, Ontario, Canada.
Susan M Jack4 Department of Health Research Methods, Evidence, and Impact, School of Nursing, Offord Centre for Child Studies, McMaster University, Hamilton, Ontario, Canada.
Katholiki Georgiades5 Department of Health Research Methods, Evidence, and Impact, David R. (Dan) Offord Chair in Child Studies, Psychiatry & Behavioural Neurosciences, Offord Centre for Child Studies, McMaster University, Hamilton, Ontario, Canada.
Impact · CAMcMaster University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDepression, anxiety, and substance use disorders are leading causes of morbidity worldwide. The most commonly used illicit substance is cannabis and there is some evidence that the association between cannabis use and poor mental health is more pronounced among females compared with males. This analysis examines sex differences in the association between cannabis use and major depressive episode (MDE), suicidal thoughts and attempts, and psychological distress.

methodsThis study uses data from the 2002 and 2012 Canadian Community Health Survey's Mental Health Component, repeated cross-sectional surveys of nationally representative samples of Canadians 15 years of age and older ( n = 43,466). Linear and binary logistic regressions were performed, applying weighting and bootstrapping.

resultsThere were significant sex differences in the strength of the association between cannabis use and suicidal thoughts and attempts and psychological distress, but not MDE. Females who reported using cannabis occasionally (defined as 1 to 4 times a month) reported higher levels of psychological distress than their male counterparts. Females who reported using regularly (defined as more than once per week) reported higher levels of psychological distress and were more likely to report suicidal thoughts and attempts.

conclusionsFuture research is needed to further our understanding of the nature of these sex differences. Public health messaging should incorporate being female as a potential risk factor for the co-occurrence of cannabis use and emotional problems, particularly at higher frequencies of use. Clinicians should also be aware of this association to better inform integrated mental health and substance use screening, discussions, and care, particularly for female patients.

Indexed as

Psychological DistressSuicidal IdeationAdolescentAdultCanadaCross-Sectional StudiesFemaleHumansMajor Depressive DisorderMaleMarijuana UseMiddle AgedSex FactorsSuicide, AttemptedYoung Adultcannabisdepressiongenderpsychological distresssexsuicide

Identifiers

PMID30260680
PMCPMC6591888
OpenAlexW2894274017

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.